diff --git a/web/frontend/src/components/app-header.tsx b/web/frontend/src/components/app-header.tsx
index 1c2ca672e..7a50fe0fb 100644
--- a/web/frontend/src/components/app-header.tsx
+++ b/web/frontend/src/components/app-header.tsx
@@ -87,10 +87,7 @@ export function AppHeader() {
             <span className="bg-destructive/50 relative flex size-2 shrink-0 items-center justify-center rounded-full">
               <span className="bg-destructive absolute inline-flex size-full animate-ping rounded-full opacity-75"></span>
             </span>
-            {t(
-              "chat.notConnected",
-              "Gateway is not running. Start it to chat.",
-            )}
+            {t("chat.notConnected")}
           </div>
         )}
       </div>
@@ -99,24 +96,19 @@ export function AppHeader() {
         <AlertDialogContent>
           <AlertDialogHeader>
             <AlertDialogTitle>
-              {t("header.gateway.stopDialog.title", "Stop Gateway Service?")}
+              {t("header.gateway.stopDialog.title")}
             </AlertDialogTitle>
             <AlertDialogDescription>
-              {t(
-                "header.gateway.stopDialog.description",
-                "Are you sure you want to stop the gateway? This will disconnect your active chat sessions and halt inference.",
-              )}
+              {t("header.gateway.stopDialog.description")}
             </AlertDialogDescription>
           </AlertDialogHeader>
           <AlertDialogFooter>
-            <AlertDialogCancel>
-              {t("common.cancel", "Cancel")}
-            </AlertDialogCancel>
+            <AlertDialogCancel>{t("common.cancel")}</AlertDialogCancel>
             <AlertDialogAction
               onClick={confirmStop}
               className="bg-destructive text-destructive-foreground hover:bg-destructive/90"
             >
-              {t("header.gateway.stopDialog.confirm", "Stop Gateway")}
+              {t("header.gateway.stopDialog.confirm")}
             </AlertDialogAction>
           </AlertDialogFooter>
         </AlertDialogContent>
@@ -146,10 +138,10 @@ export function AppHeader() {
           )}
           <span className="text-xs font-semibold">
             {isRunning
-              ? t("header.gateway.action.stop", "Stop Gateway")
+              ? t("header.gateway.action.stop")
               : isStarting
-                ? t("header.gateway.status.starting", "Starting Gateway...")
-                : t("header.gateway.action.start", "Start Gateway")}
+                ? t("header.gateway.status.starting")
+                : t("header.gateway.action.start")}
           </span>
         </Button>
 
diff --git a/web/frontend/src/components/channels/channel-config-page.tsx b/web/frontend/src/components/channels/channel-config-page.tsx
index faa0f4043..b19d11e6a 100644
--- a/web/frontend/src/components/channels/channel-config-page.tsx
+++ b/web/frontend/src/components/channels/channel-config-page.tsx
@@ -494,7 +494,7 @@ export function ChannelConfigPage({ channelName }: ChannelConfigPageProps) {
           <div className="w-full max-w-250 space-y-5 pt-2">
             <div className="flex items-center gap-2 text-sm">
               <p className="font-medium">
-                {t("channels.edit.title", {
+                {t("channels.edit", {
                   name: channelDisplayName,
                 })}
               </p>
diff --git a/web/frontend/src/components/chat/chat-page.tsx b/web/frontend/src/components/chat/chat-page.tsx
index 418beadb9..0fd23a6a5 100644
--- a/web/frontend/src/components/chat/chat-page.tsx
+++ b/web/frontend/src/components/chat/chat-page.tsx
@@ -69,7 +69,7 @@ export function ChatPage() {
   return (
     <div className="bg-background/95 flex h-full flex-col">
       <PageHeader
-        title={t("navigation.chat", "Chat")}
+        title={t("navigation.chat")}
         titleExtra={
           hasConfiguredModels && (
             <ModelSelector
diff --git a/web/frontend/src/components/chat/model-selector.tsx b/web/frontend/src/components/chat/model-selector.tsx
index 6f3e0cafc..30afc5d04 100644
--- a/web/frontend/src/components/chat/model-selector.tsx
+++ b/web/frontend/src/components/chat/model-selector.tsx
@@ -40,7 +40,7 @@ export function ModelSelector({
       <SelectContent>
         {apiKeyModels.length > 0 && (
           <SelectGroup>
-            <SelectLabel>{t("chat.modelGroup.apikey", "API Key")}</SelectLabel>
+            <SelectLabel>{t("chat.modelGroup.apikey")}</SelectLabel>
             {apiKeyModels.map((model) => (
               <SelectItem key={model.index} value={model.model_name}>
                 {model.model_name}
@@ -55,7 +55,7 @@ export function ModelSelector({
 
         {oauthModels.length > 0 && (
           <SelectGroup>
-            <SelectLabel>{t("chat.modelGroup.oauth", "OAuth")}</SelectLabel>
+            <SelectLabel>{t("chat.modelGroup.oauth")}</SelectLabel>
             {oauthModels.map((model) => (
               <SelectItem key={model.index} value={model.model_name}>
                 {model.model_name}
@@ -70,7 +70,7 @@ export function ModelSelector({
 
         {localModels.length > 0 && (
           <SelectGroup>
-            <SelectLabel>{t("chat.modelGroup.local", "Local")}</SelectLabel>
+            <SelectLabel>{t("chat.modelGroup.local")}</SelectLabel>
             {localModels.map((model) => (
               <SelectItem key={model.index} value={model.model_name}>
                 {model.model_name}
diff --git a/web/frontend/src/components/chat/session-history-menu.tsx b/web/frontend/src/components/chat/session-history-menu.tsx
index 36bb0eedd..f2e93295c 100644
--- a/web/frontend/src/components/chat/session-history-menu.tsx
+++ b/web/frontend/src/components/chat/session-history-menu.tsx
@@ -71,7 +71,7 @@ export function SessionHistoryMenu({
                 <Button
                   variant="ghost"
                   size="icon"
-                  aria-label={t("chat.deleteSession", "Delete session")}
+                  aria-label={t("chat.deleteSession")}
                   className="text-muted-foreground hover:bg-destructive/10 hover:text-destructive absolute top-1/2 right-2 h-6 w-6 -translate-y-1/2 opacity-0 transition-opacity group-hover:opacity-100"
                   onClick={(e) => {
                     e.preventDefault()
@@ -87,7 +87,7 @@ export function SessionHistoryMenu({
           {hasMore && sessions.length > 0 && (
             <div ref={observerRef} className="py-2 text-center">
               <span className="text-muted-foreground animate-pulse text-xs">
-                {t("chat.loadingMore", "Loading more...")}
+                {t("chat.loadingMore")}
               </span>
             </div>
           )}
diff --git a/web/frontend/src/components/config/config-page.tsx b/web/frontend/src/components/config/config-page.tsx
index 57a7da201..c2d502079 100644
--- a/web/frontend/src/components/config/config-page.tsx
+++ b/web/frontend/src/components/config/config-page.tsx
@@ -106,29 +106,14 @@ export function ConfigPage() {
 
   const autoStartSupported = autoStartStatus?.supported !== false
   const autoStartHint = autoStartError
-    ? t(
-        "pages.config.autostart_load_error",
-        "Failed to load launch-at-login status.",
-      )
+    ? t("pages.config.autostart_load_error")
     : !autoStartSupported
-      ? t(
-          "pages.config.autostart_unsupported",
-          "Launch at login is not supported on this platform.",
-        )
-      : t(
-          "pages.config.autostart_hint",
-          "Start PicoClaw Web automatically when you log in.",
-        )
+      ? t("pages.config.autostart_unsupported")
+      : t("pages.config.autostart_hint")
 
   const launcherHint = launcherError
-    ? t(
-        "pages.config.launcher_load_error",
-        "Failed to load service parameters.",
-      )
-    : t(
-        "pages.config.launcher_restart_hint",
-        "Service parameter changes apply after restarting PicoClaw Web.",
-      )
+    ? t("pages.config.launcher_load_error")
+    : t("pages.config.launcher_restart_hint")
 
   const updateField = <K extends keyof CoreConfigForm>(
     key: K,
@@ -148,12 +133,7 @@ export function ConfigPage() {
     setForm(baseline)
     setLauncherForm(launcherBaseline)
     setAutoStartEnabled(autoStartBaseline)
-    toast.info(
-      t(
-        "pages.config.reset_success",
-        "Changes have been reset to the last saved state.",
-      ),
-    )
+    toast.info(t("pages.config.reset_success"))
   }
 
   const handleSave = async () => {
@@ -251,12 +231,7 @@ export function ConfigPage() {
 
       if (autoStartDirty) {
         if (!autoStartSupported) {
-          throw new Error(
-            t(
-              "pages.config.autostart_unsupported",
-              "Launch at login is not supported on this platform.",
-            ),
-          )
+          throw new Error(t("pages.config.autostart_unsupported"))
         }
         const status = await updateAutoStartEnabled(autoStartEnabled)
         setAutoStartEnabled(status.enabled)
@@ -264,14 +239,10 @@ export function ConfigPage() {
         queryClient.setQueryData(["system", "autostart"], status)
       }
 
-      toast.success(
-        t("pages.config.save_success", "Configuration saved successfully."),
-      )
+      toast.success(t("pages.config.save_success"))
     } catch (err) {
       toast.error(
-        err instanceof Error
-          ? err.message
-          : t("pages.config.save_error", "Failed to save configuration."),
+        err instanceof Error ? err.message : t("pages.config.save_error"),
       )
     } finally {
       setSaving(false)
@@ -281,12 +252,12 @@ export function ConfigPage() {
   return (
     <div className="flex h-full flex-col">
       <PageHeader
-        title={t("navigation.config", "Config")}
+        title={t("navigation.config")}
         children={
           <Button variant="outline" asChild>
             <Link to="/config/raw">
               <IconCode className="size-4" />
-              {t("pages.config.open_raw", "Raw Config")}
+              {t("pages.config.open_raw")}
             </Link>
           </Button>
         }
@@ -295,23 +266,17 @@ export function ConfigPage() {
         <div className="mx-auto w-full max-w-[1000px] space-y-6">
           {isLoading ? (
             <div className="text-muted-foreground py-6 text-sm">
-              {t("labels.loading", "Loading...")}
+              {t("labels.loading")}
             </div>
           ) : error ? (
             <div className="text-destructive py-6 text-sm">
-              {t(
-                "pages.config.load_error",
-                "Failed to load configuration. Please refresh and try again.",
-              )}
+              {t("pages.config.load_error")}
             </div>
           ) : (
             <div className="space-y-6">
               {isDirty && (
                 <div className="bg-yellow-50 px-3 py-2 text-sm text-yellow-700">
-                  {t(
-                    "pages.config.unsaved_changes",
-                    "You have unsaved changes.",
-                  )}
+                  {t("pages.config.unsaved_changes")}
                 </div>
               )}
 
@@ -356,13 +321,11 @@ export function ConfigPage() {
                   onClick={handleReset}
                   disabled={!isDirty || saving}
                 >
-                  {t("common.reset", "Reset")}
+                  {t("common.reset")}
                 </Button>
                 <Button onClick={handleSave} disabled={!isDirty || saving}>
                   <IconDeviceFloppy className="size-4" />
-                  {saving
-                    ? t("common.saving", "Saving...")
-                    : t("common.save", "Save")}
+                  {saving ? t("common.saving") : t("common.save")}
                 </Button>
               </div>
             </div>
diff --git a/web/frontend/src/components/config/config-sections.tsx b/web/frontend/src/components/config/config-sections.tsx
index b2c22e50c..340ece333 100644
--- a/web/frontend/src/components/config/config-sections.tsx
+++ b/web/frontend/src/components/config/config-sections.tsx
@@ -44,11 +44,8 @@ export function AgentDefaultsSection({
     <section className="space-y-3">
       <div className="space-y-4">
         <Field
-          label={t("pages.config.workspace", "Workspace Directory")}
-          hint={t(
-            "pages.config.workspace_hint",
-            "Base directory for agent file operations.",
-          )}
+          label={t("pages.config.workspace")}
+          hint={t("pages.config.workspace_hint")}
         >
           <Input
             value={form.workspace}
@@ -58,11 +55,8 @@ export function AgentDefaultsSection({
         </Field>
 
         <SwitchCardField
-          label={t("pages.config.restrict_workspace", "Restrict to Workspace")}
-          hint={t(
-            "pages.config.restrict_workspace_hint",
-            "Only allow file operations inside workspace.",
-          )}
+          label={t("pages.config.restrict_workspace")}
+          hint={t("pages.config.restrict_workspace_hint")}
           checked={form.restrictToWorkspace}
           onCheckedChange={(checked) =>
             onFieldChange("restrictToWorkspace", checked)
@@ -70,11 +64,8 @@ export function AgentDefaultsSection({
         />
 
         <Field
-          label={t("pages.config.max_tokens", "Max Tokens")}
-          hint={t(
-            "pages.config.max_tokens_hint",
-            "Upper token limit per model response.",
-          )}
+          label={t("pages.config.max_tokens")}
+          hint={t("pages.config.max_tokens_hint")}
         >
           <Input
             type="number"
@@ -85,11 +76,8 @@ export function AgentDefaultsSection({
         </Field>
 
         <Field
-          label={t("pages.config.max_tool_iterations", "Max Tool Iterations")}
-          hint={t(
-            "pages.config.max_tool_iterations_hint",
-            "Maximum tool-call loops in a single task.",
-          )}
+          label={t("pages.config.max_tool_iterations")}
+          hint={t("pages.config.max_tool_iterations_hint")}
         >
           <Input
             type="number"
@@ -100,14 +88,8 @@ export function AgentDefaultsSection({
         </Field>
 
         <Field
-          label={t(
-            "pages.config.summarize_threshold",
-            "Summarize Message Threshold",
-          )}
-          hint={t(
-            "pages.config.summarize_threshold_hint",
-            "Start summarization after this many messages.",
-          )}
+          label={t("pages.config.summarize_threshold")}
+          hint={t("pages.config.summarize_threshold_hint")}
         >
           <Input
             type="number"
@@ -120,14 +102,8 @@ export function AgentDefaultsSection({
         </Field>
 
         <Field
-          label={t(
-            "pages.config.summarize_token_percent",
-            "Summarize Token Percent",
-          )}
-          hint={t(
-            "pages.config.summarize_token_percent_hint",
-            "Used when conversation summary is triggered.",
-          )}
+          label={t("pages.config.summarize_token_percent")}
+          hint={t("pages.config.summarize_token_percent_hint")}
         >
           <Input
             type="number"
@@ -159,11 +135,8 @@ export function RuntimeSection({ form, onFieldChange }: RuntimeSectionProps) {
     <section className="space-y-3">
       <div className="space-y-4">
         <Field
-          label={t("pages.config.session_scope", "Session Scope")}
-          hint={t(
-            "pages.config.session_scope_hint",
-            "How chat context is isolated across peers/channels.",
-          )}
+          label={t("pages.config.session_scope")}
+          hint={t("pages.config.session_scope_hint")}
         >
           <Select
             value={form.dmScope}
@@ -183,11 +156,9 @@ export function RuntimeSection({ form, onFieldChange }: RuntimeSectionProps) {
               {DM_SCOPE_OPTIONS.map((scope) => (
                 <SelectItem key={scope.value} value={scope.value}>
                   <div className="flex flex-col gap-0.5">
-                    <span className="font-medium">
-                      {t(scope.labelKey, scope.labelDefault)}
-                    </span>
+                    <span className="font-medium">{t(scope.labelKey)}</span>
                     <span className="text-muted-foreground text-xs">
-                      {t(scope.descKey, scope.descDefault)}
+                      {t(scope.descKey)}
                     </span>
                   </div>
                 </SelectItem>
@@ -197,11 +168,8 @@ export function RuntimeSection({ form, onFieldChange }: RuntimeSectionProps) {
         </Field>
 
         <SwitchCardField
-          label={t("pages.config.heartbeat_enabled", "Heartbeat")}
-          hint={t(
-            "pages.config.heartbeat_enabled_hint",
-            "Send periodic heartbeat messages.",
-          )}
+          label={t("pages.config.heartbeat_enabled")}
+          hint={t("pages.config.heartbeat_enabled_hint")}
           checked={form.heartbeatEnabled}
           onCheckedChange={(checked) =>
             onFieldChange("heartbeatEnabled", checked)
@@ -210,14 +178,8 @@ export function RuntimeSection({ form, onFieldChange }: RuntimeSectionProps) {
 
         {form.heartbeatEnabled && (
           <Field
-            label={t(
-              "pages.config.heartbeat_interval",
-              "Heartbeat Interval (minutes)",
-            )}
-            hint={t(
-              "pages.config.heartbeat_interval_hint",
-              "Interval in minutes between heartbeat signals.",
-            )}
+            label={t("pages.config.heartbeat_interval")}
+            hint={t("pages.config.heartbeat_interval_hint")}
           >
             <Input
               type="number"
@@ -253,11 +215,8 @@ export function LauncherSection({
     <section className="space-y-3">
       <div className="space-y-4">
         <Field
-          label={t("pages.config.server_port", "Service Port")}
-          hint={t(
-            "pages.config.server_port_hint",
-            "HTTP port used by PicoClaw Web.",
-          )}
+          label={t("pages.config.server_port")}
+          hint={t("pages.config.server_port_hint")}
         >
           <Input
             type="number"
@@ -270,30 +229,21 @@ export function LauncherSection({
         </Field>
 
         <SwitchCardField
-          label={t("pages.config.lan_access", "Enable LAN Access")}
-          hint={t(
-            "pages.config.lan_access_hint",
-            "Allow access from other devices on your local network.",
-          )}
+          label={t("pages.config.lan_access")}
+          hint={t("pages.config.lan_access_hint")}
           checked={launcherForm.publicAccess}
           disabled={disabled}
           onCheckedChange={(checked) => onFieldChange("publicAccess", checked)}
         />
 
         <Field
-          label={t("pages.config.allowed_cidrs", "Allowed Network CIDRs")}
-          hint={t(
-            "pages.config.allowed_cidrs_hint",
-            "Only clients from these CIDR ranges can access the service. One per line or comma-separated. Leave empty to allow all.",
-          )}
+          label={t("pages.config.allowed_cidrs")}
+          hint={t("pages.config.allowed_cidrs_hint")}
         >
           <Textarea
             value={launcherForm.allowedCIDRsText}
             disabled={disabled}
-            placeholder={t(
-              "pages.config.allowed_cidrs_placeholder",
-              "192.168.1.0/24\n10.0.0.0/8",
-            )}
+            placeholder={t("pages.config.allowed_cidrs_placeholder")}
             className="min-h-[88px]"
             onChange={(e) => onFieldChange("allowedCIDRsText", e.target.value)}
           />
@@ -328,11 +278,8 @@ export function DevicesSection({
     <section className="space-y-3">
       <div className="space-y-4">
         <SwitchCardField
-          label={t("pages.config.devices_enabled", "Enable Devices")}
-          hint={t(
-            "pages.config.devices_enabled_hint",
-            "Enable hardware-device integrations.",
-          )}
+          label={t("pages.config.devices_enabled")}
+          hint={t("pages.config.devices_enabled_hint")}
           checked={form.devicesEnabled}
           onCheckedChange={(checked) =>
             onFieldChange("devicesEnabled", checked)
@@ -340,17 +287,14 @@ export function DevicesSection({
         />
 
         <SwitchCardField
-          label={t("pages.config.monitor_usb", "Monitor USB")}
-          hint={t(
-            "pages.config.monitor_usb_hint",
-            "Watch USB plug/unplug events when devices are enabled.",
-          )}
+          label={t("pages.config.monitor_usb")}
+          hint={t("pages.config.monitor_usb_hint")}
           checked={form.monitorUSB}
           onCheckedChange={(checked) => onFieldChange("monitorUSB", checked)}
         />
 
         <SwitchCardField
-          label={t("pages.config.autostart_label", "Launch at Login")}
+          label={t("pages.config.autostart_label")}
           hint={autoStartHint}
           checked={autoStartEnabled}
           disabled={autoStartDisabled}
@@ -367,16 +311,13 @@ export function AdvancedSection() {
   return (
     <section className="space-y-3">
       <p className="text-muted-foreground text-sm">
-        {t(
-          "pages.config.advanced_desc",
-          "Open the raw JSON page to edit every field directly.",
-        )}
+        {t("pages.config.advanced_desc")}
       </p>
       <div>
         <Button variant="outline" asChild>
           <Link to="/config/raw">
             <IconCode className="size-4" />
-            {t("pages.config.open_raw", "Raw Config")}
+            {t("pages.config.open_raw")}
           </Link>
         </Button>
       </div>
diff --git a/web/frontend/src/components/config/raw-json-panel.tsx b/web/frontend/src/components/config/raw-json-panel.tsx
index b63472bd1..f67bd89f5 100644
--- a/web/frontend/src/components/config/raw-json-panel.tsx
+++ b/web/frontend/src/components/config/raw-json-panel.tsx
@@ -52,9 +52,7 @@ export function RawJsonPanel() {
       }
     },
     onSuccess: (_, submittedConfig) => {
-      toast.success(
-        t("pages.config.save_success", "Configuration saved successfully."),
-      )
+      toast.success(t("pages.config.save_success"))
       try {
         const savedConfig = JSON.parse(submittedConfig)
         setLastSavedConfig(savedConfig)
@@ -65,7 +63,7 @@ export function RawJsonPanel() {
       }
     },
     onError: () => {
-      toast.error(t("pages.config.save_error", "Failed to save configuration."))
+      toast.error(t("pages.config.save_error"))
     },
   })
 
@@ -101,9 +99,7 @@ export function RawJsonPanel() {
         2,
       )
       setEditorValue(formatted)
-      toast.success(
-        t("pages.config.format_success", "JSON formatted successfully."),
-      )
+      toast.success(t("pages.config.format_success"))
     } catch (error) {
       toast.error(
         t(
@@ -123,38 +119,26 @@ export function RawJsonPanel() {
       setEditorValue(JSON.stringify(config, null, 2))
     }
     setIsDirty(false)
-    toast.info(
-      t(
-        "pages.config.reset_success",
-        "Changes have been reset to the last saved state.",
-      ),
-    )
+    toast.info(t("pages.config.reset_success"))
     setShowResetDialog(false)
   }
 
   return (
     <Card>
       <CardHeader>
-        <CardTitle>
-          {t("pages.config.raw_json_title", "Raw JSON Configuration")}
-        </CardTitle>
-        <CardDescription>
-          {t(
-            "pages.config.raw_json_desc",
-            "Advanced users can directly edit the raw JSON configuration below.",
-          )}
-        </CardDescription>
+        <CardTitle>{t("pages.config.raw_json_title")}</CardTitle>
+        <CardDescription>{t("pages.config.raw_json_desc")}</CardDescription>
       </CardHeader>
       <CardContent>
         {isLoading ? (
           <div className="flex h-64 items-center justify-center">
-            <p>{t("labels.loading", "Loading...")}</p>
+            <p>{t("labels.loading")}</p>
           </div>
         ) : (
           <div className="space-y-3">
             {isDirty && (
               <div className="rounded-lg border border-yellow-200 bg-yellow-50 p-2 text-sm text-yellow-700">
-                {t("pages.config.unsaved_changes", "You have unsaved changes.")}
+                {t("pages.config.unsaved_changes")}
               </div>
             )}
             <div className="bg-muted/30 relative rounded-lg border">
@@ -166,10 +150,7 @@ export function RawJsonPanel() {
                     setIsDirty(true)
                   }}
                   className="min-h-[200px] resize-none border-0 bg-transparent px-4 py-3 font-mono text-sm shadow-none focus-visible:ring-0"
-                  placeholder={t(
-                    "pages.config.json_placeholder",
-                    "Enter valid JSON configuration...",
-                  )}
+                  placeholder={t("pages.config.json_placeholder")}
                 />
               </ScrollArea>
             </div>
@@ -179,7 +160,7 @@ export function RawJsonPanel() {
                 onClick={handleFormat}
                 disabled={mutation.isPending}
               >
-                {t("pages.config.format", "Format")}
+                {t("pages.config.format")}
               </Button>
               <AlertDialog
                 open={showResetDialog}
@@ -191,35 +172,28 @@ export function RawJsonPanel() {
                     disabled={!isDirty}
                     onClick={() => setShowResetDialog(true)}
                   >
-                    {t("common.reset", "Reset")}
+                    {t("common.reset")}
                   </Button>
                 </AlertDialogTrigger>
                 <AlertDialogContent>
                   <AlertDialogHeader>
                     <AlertDialogTitle>
-                      {t("pages.config.reset_confirm_title", "Reset Changes")}
+                      {t("pages.config.reset_confirm_title")}
                     </AlertDialogTitle>
                     <AlertDialogDescription>
-                      {t(
-                        "pages.config.reset_confirm_desc",
-                        "Are you sure you want to reset your unsaved changes back to the last saved state?",
-                      )}
+                      {t("pages.config.reset_confirm_desc")}
                     </AlertDialogDescription>
                   </AlertDialogHeader>
                   <AlertDialogFooter>
-                    <AlertDialogCancel>
-                      {t("common.cancel", "Cancel")}
-                    </AlertDialogCancel>
+                    <AlertDialogCancel>{t("common.cancel")}</AlertDialogCancel>
                     <AlertDialogAction onClick={confirmReset}>
-                      {t("common.confirm", "Confirm")}
+                      {t("common.confirm")}
                     </AlertDialogAction>
                   </AlertDialogFooter>
                 </AlertDialogContent>
               </AlertDialog>
               <Button onClick={handleSave} disabled={mutation.isPending}>
-                {mutation.isPending
-                  ? t("common.saving", "Saving...")
-                  : t("common.save", "Save")}
+                {mutation.isPending ? t("common.saving") : t("common.save")}
               </Button>
             </div>
           </div>
diff --git a/web/frontend/src/components/credentials/anthropic-credential-card.tsx b/web/frontend/src/components/credentials/anthropic-credential-card.tsx
index efc1509c0..c7e968646 100644
--- a/web/frontend/src/components/credentials/anthropic-credential-card.tsx
+++ b/web/frontend/src/components/credentials/anthropic-credential-card.tsx
@@ -34,7 +34,7 @@ export function AnthropicCredentialCard({
   const { t } = useTranslation()
   const actionBusy = activeAction !== ""
   const tokenLoading = activeAction === "anthropic:token"
-  const stopLabel = t("credentials.actions.stopLoading", "Stop Loading")
+  const stopLabel = t("credentials.actions.stopLoading")
 
   return (
     <CredentialCard
@@ -46,10 +46,7 @@ export function AnthropicCredentialCard({
           <span>Anthropic</span>
         </span>
       }
-      description={t(
-        "credentials.providers.anthropic.description",
-        "Uses token login for Claude access.",
-      )}
+      description={t("credentials.providers.anthropic.description")}
       status={status?.status ?? "not_logged_in"}
       authMethod={status?.auth_method}
       actions={
@@ -60,10 +57,7 @@ export function AnthropicCredentialCard({
                 value={token}
                 onChange={(e) => onTokenChange(e.target.value)}
                 type="password"
-                placeholder={t(
-                  "credentials.fields.anthropicToken",
-                  "Anthropic token",
-                )}
+                placeholder={t("credentials.fields.anthropicToken")}
               />
               <Button
                 size="sm"
@@ -75,7 +69,7 @@ export function AnthropicCredentialCard({
                   <IconLoader2 className="size-4 animate-spin" />
                 )}
                 <IconKey className="size-4" />
-                {t("credentials.actions.saveToken", "Save")}
+                {t("credentials.actions.saveToken")}
               </Button>
               {tokenLoading && (
                 <Button
@@ -105,7 +99,7 @@ export function AnthropicCredentialCard({
             {activeAction === "anthropic:logout" && (
               <IconLoader2 className="size-4 animate-spin" />
             )}
-            {t("credentials.actions.logout", "Logout")}
+            {t("credentials.actions.logout")}
           </Button>
         ) : null
       }
diff --git a/web/frontend/src/components/credentials/antigravity-credential-card.tsx b/web/frontend/src/components/credentials/antigravity-credential-card.tsx
index e9290234a..62a19145b 100644
--- a/web/frontend/src/components/credentials/antigravity-credential-card.tsx
+++ b/web/frontend/src/components/credentials/antigravity-credential-card.tsx
@@ -40,22 +40,19 @@ export function AntigravityCredentialCard({
           <span>Google Antigravity</span>
         </span>
       }
-      description={t(
-        "credentials.providers.antigravity.description",
-        "Uses browser OAuth for Google Cloud Code Assist.",
-      )}
+      description={t("credentials.providers.antigravity.description")}
       status={status?.status ?? "not_logged_in"}
       authMethod={status?.auth_method}
       details={
         <div className="space-y-1">
           {status?.email && (
             <p>
-              {t("credentials.labels.email", "Email")}: {status.email}
+              {t("credentials.labels.email")}: {status.email}
             </p>
           )}
           {status?.project_id && (
             <p>
-              {t("credentials.labels.project", "Project")}: {status.project_id}
+              {t("credentials.labels.project")}: {status.project_id}
             </p>
           )}
         </div>
@@ -73,7 +70,7 @@ export function AntigravityCredentialCard({
                 <IconLoader2 className="size-4 animate-spin" />
               )}
               <IconLockOpen className="size-4" />
-              {t("credentials.actions.browser", "Browser OAuth")}
+              {t("credentials.actions.browser")}
             </Button>
             {browserLoading && (
               <Button
@@ -100,7 +97,7 @@ export function AntigravityCredentialCard({
             {activeAction === "google-antigravity:logout" && (
               <IconLoader2 className="size-4 animate-spin" />
             )}
-            {t("credentials.actions.logout", "Logout")}
+            {t("credentials.actions.logout")}
           </Button>
         ) : null
       }
diff --git a/web/frontend/src/components/credentials/credentials-page.tsx b/web/frontend/src/components/credentials/credentials-page.tsx
index 34f701e75..04aceb002 100644
--- a/web/frontend/src/components/credentials/credentials-page.tsx
+++ b/web/frontend/src/components/credentials/credentials-page.tsx
@@ -42,15 +42,12 @@ export function CredentialsPage() {
 
   return (
     <div className="flex h-full flex-col">
-      <PageHeader title={t("navigation.credentials", "Credentials")} />
+      <PageHeader title={t("navigation.credentials")} />
 
       <div className="min-h-0 flex-1 overflow-y-auto px-4 sm:px-6">
         <div className="pt-2">
           <p className="text-muted-foreground text-sm">
-            {t(
-              "credentials.description",
-              "Manage OAuth and token-based credentials for supported providers.",
-            )}
+            {t("credentials.description")}
           </p>
         </div>
 
@@ -62,9 +59,7 @@ export function CredentialsPage() {
 
         {activeFlow && (
           <div className="bg-muted mt-4 rounded-lg border px-4 py-3 text-sm">
-            <p className="font-medium">
-              {t("credentials.flow.current", "Current authentication status")}
-            </p>
+            <p className="font-medium">{t("credentials.flow.current")}</p>
             <p className="text-muted-foreground mt-1">{flowHint}</p>
           </div>
         )}
@@ -72,7 +67,7 @@ export function CredentialsPage() {
         {loading ? (
           <div className="text-muted-foreground flex items-center gap-2 py-10 text-sm">
             <IconLoader2 className="size-4 animate-spin" />
-            {t("credentials.loading", "Loading credentials...")}
+            {t("credentials.loading")}
           </div>
         ) : (
           <div className="grid grid-cols-1 gap-4 py-5 lg:auto-rows-fr lg:grid-cols-3">
diff --git a/web/frontend/src/components/credentials/device-code-sheet.tsx b/web/frontend/src/components/credentials/device-code-sheet.tsx
index 65d53e16f..c6d2a754f 100644
--- a/web/frontend/src/components/credentials/device-code-sheet.tsx
+++ b/web/frontend/src/components/credentials/device-code-sheet.tsx
@@ -34,21 +34,16 @@ export function DeviceCodeSheet({
         className="data-[side=right]:!w-full data-[side=right]:sm:!w-[480px] data-[side=right]:sm:!max-w-[480px]"
       >
         <SheetHeader className="border-b-muted border-b px-6 py-5">
-          <SheetTitle>
-            {t("credentials.device.title", "OpenAI Device Login")}
-          </SheetTitle>
+          <SheetTitle>{t("credentials.device.title")}</SheetTitle>
           <SheetDescription>
-            {t(
-              "credentials.device.description",
-              "Open the verification page and enter the code below. This page will refresh automatically.",
-            )}
+            {t("credentials.device.description")}
           </SheetDescription>
         </SheetHeader>
 
         <div className="space-y-4 px-6 py-5">
           <div>
             <p className="text-muted-foreground text-xs uppercase">
-              {t("credentials.device.code", "User Code")}
+              {t("credentials.device.code")}
             </p>
             <p className="mt-1 rounded-md border px-3 py-2 font-mono text-lg font-semibold tracking-wide">
               {flow?.user_code || "-"}
@@ -57,7 +52,7 @@ export function DeviceCodeSheet({
 
           <div>
             <p className="text-muted-foreground text-xs uppercase">
-              {t("credentials.device.url", "Verification URL")}
+              {t("credentials.device.url")}
             </p>
             <a
               href={flow?.verify_url || "#"}
@@ -71,7 +66,7 @@ export function DeviceCodeSheet({
 
           <div className="text-muted-foreground flex items-center gap-2 text-sm">
             <IconRefresh className="size-4" />
-            {t("credentials.device.polling", "Polling login status...")}
+            {t("credentials.device.polling")}
           </div>
 
           {flow && (
@@ -83,11 +78,11 @@ export function DeviceCodeSheet({
 
         <SheetFooter className="border-t-muted border-t px-6 py-4">
           <Button variant="ghost" onClick={() => onOpenChange(false)}>
-            {t("common.cancel", "Close")}
+            {t("common.cancel")}
           </Button>
           <Button asChild disabled={!flow?.verify_url}>
             <a href={flow?.verify_url || "#"} target="_blank" rel="noreferrer">
-              {t("credentials.device.open", "Open Verification Page")}
+              {t("credentials.device.open")}
             </a>
           </Button>
         </SheetFooter>
diff --git a/web/frontend/src/components/credentials/logout-confirm-dialog.tsx b/web/frontend/src/components/credentials/logout-confirm-dialog.tsx
index 2443a0217..1a9eebffd 100644
--- a/web/frontend/src/components/credentials/logout-confirm-dialog.tsx
+++ b/web/frontend/src/components/credentials/logout-confirm-dialog.tsx
@@ -34,7 +34,7 @@ export function LogoutConfirmDialog({
       <AlertDialogContent>
         <AlertDialogHeader>
           <AlertDialogTitle>
-            {t("credentials.logoutDialog.title", "Logout provider?")}
+            {t("credentials.logoutDialog.title")}
           </AlertDialogTitle>
           <AlertDialogDescription>
             {t(
@@ -45,10 +45,10 @@ export function LogoutConfirmDialog({
           </AlertDialogDescription>
         </AlertDialogHeader>
         <AlertDialogFooter>
-          <AlertDialogCancel>{t("common.cancel", "Cancel")}</AlertDialogCancel>
+          <AlertDialogCancel>{t("common.cancel")}</AlertDialogCancel>
           <AlertDialogAction onClick={onConfirm} variant="destructive">
             {isSubmitting && <IconLoader2 className="size-4 animate-spin" />}
-            {t("credentials.actions.logout", "Logout")}
+            {t("credentials.actions.logout")}
           </AlertDialogAction>
         </AlertDialogFooter>
       </AlertDialogContent>
diff --git a/web/frontend/src/components/credentials/openai-credential-card.tsx b/web/frontend/src/components/credentials/openai-credential-card.tsx
index 00d93dec6..925508191 100644
--- a/web/frontend/src/components/credentials/openai-credential-card.tsx
+++ b/web/frontend/src/components/credentials/openai-credential-card.tsx
@@ -53,16 +53,13 @@ export function OpenAICredentialCard({
           <span>OpenAI</span>
         </span>
       }
-      description={t(
-        "credentials.providers.openai.description",
-        "Supports browser OAuth, device code, and token login.",
-      )}
+      description={t("credentials.providers.openai.description")}
       status={status?.status ?? "not_logged_in"}
       authMethod={status?.auth_method}
       details={
         status?.account_id ? (
           <p>
-            {t("credentials.labels.account", "Account")}: {status.account_id}
+            {t("credentials.labels.account")}: {status.account_id}
           </p>
         ) : null
       }
@@ -81,7 +78,7 @@ export function OpenAICredentialCard({
                     <IconLoader2 className="size-4 animate-spin" />
                   )}
                   <IconBrandOpenai className="size-4" />
-                  {t("credentials.actions.browser", "Browser OAuth")}
+                  {t("credentials.actions.browser")}
                 </Button>
 
                 {oauthLoading && !deviceLoading && (
@@ -105,7 +102,7 @@ export function OpenAICredentialCard({
                     <IconLoader2 className="size-4 animate-spin" />
                   )}
                   <IconClockHour4 className="size-4" />
-                  {t("credentials.actions.deviceCode", "Device Code")}
+                  {t("credentials.actions.deviceCode")}
                 </Button>
               </div>
             </div>
@@ -116,10 +113,7 @@ export function OpenAICredentialCard({
                   value={token}
                   onChange={(e) => onTokenChange(e.target.value)}
                   type="password"
-                  placeholder={t(
-                    "credentials.fields.openaiToken",
-                    "OpenAI token",
-                  )}
+                  placeholder={t("credentials.fields.openaiToken")}
                 />
                 <Button
                   size="sm"
@@ -130,7 +124,7 @@ export function OpenAICredentialCard({
                     <IconLoader2 className="size-4 animate-spin" />
                   )}
                   <IconKey className="size-4" />
-                  {t("credentials.actions.saveToken", "Save")}
+                  {t("credentials.actions.saveToken")}
                 </Button>
                 {tokenLoading && (
                   <Button
@@ -159,7 +153,7 @@ export function OpenAICredentialCard({
             {activeAction === "openai:logout" && (
               <IconLoader2 className="size-4 animate-spin" />
             )}
-            {t("credentials.actions.logout", "Logout")}
+            {t("credentials.actions.logout")}
           </Button>
         ) : null
       }
diff --git a/web/frontend/src/components/credentials/provider-status-line.tsx b/web/frontend/src/components/credentials/provider-status-line.tsx
index 77229071d..d891d18df 100644
--- a/web/frontend/src/components/credentials/provider-status-line.tsx
+++ b/web/frontend/src/components/credentials/provider-status-line.tsx
@@ -26,12 +26,12 @@ export function ProviderStatusLine({
     <div className="flex items-center justify-between gap-2">
       <span className={`rounded px-2 py-1 text-xs font-medium ${style}`}>
         {status === "connected"
-          ? t("credentials.status.connected", "Connected")
+          ? t("credentials.status.connected")
           : status === "needs_refresh"
-            ? t("credentials.status.needsRefresh", "Needs refresh")
+            ? t("credentials.status.needsRefresh")
             : status === "expired"
-              ? t("credentials.status.expired", "Expired")
-              : t("credentials.status.notLoggedIn", "Not logged in")}
+              ? t("credentials.status.expired")
+              : t("credentials.status.notLoggedIn")}
       </span>
       {authMethod && (
         <span className="text-muted-foreground text-xs uppercase">
diff --git a/web/frontend/src/components/models/models-page.tsx b/web/frontend/src/components/models/models-page.tsx
index 6b207fab1..b8e80e709 100644
--- a/web/frontend/src/components/models/models-page.tsx
+++ b/web/frontend/src/components/models/models-page.tsx
@@ -136,7 +136,7 @@ export function ModelsPage() {
 
   return (
     <div className="flex h-full flex-col">
-      <PageHeader title={t("navigation.models", "Models")}>
+      <PageHeader title={t("navigation.models")}>
         <div className="flex items-center gap-3">
           <Button size="sm" variant="outline" onClick={() => setAddOpen(true)}>
             <IconPlus className="size-4" />
diff --git a/web/frontend/src/hooks/use-credentials-page.ts b/web/frontend/src/hooks/use-credentials-page.ts
index 0f0bb050e..354065b23 100644
--- a/web/frontend/src/hooks/use-credentials-page.ts
+++ b/web/frontend/src/hooks/use-credentials-page.ts
@@ -53,9 +53,7 @@ export function useCredentialsPage() {
       setError("")
     } catch (err) {
       setError(
-        err instanceof Error
-          ? err.message
-          : t("credentials.errors.loadFailed", "Failed to load credentials"),
+        err instanceof Error ? err.message : t("credentials.errors.loadFailed"),
       )
     } finally {
       setLoading(false)
@@ -113,10 +111,7 @@ export function useCredentialsPage() {
         setError(
           err instanceof Error
             ? err.message
-            : t(
-                "credentials.errors.flowFailed",
-                "Failed to check authentication flow",
-              ),
+            : t("credentials.errors.flowFailed"),
         )
       }
     }
@@ -196,12 +191,7 @@ export function useCredentialsPage() {
           return
         }
         setActiveAction("")
-        setError(
-          t(
-            "credentials.errors.popupBlocked",
-            "Unable to open a new tab. Please allow popups and try again.",
-          ),
-        )
+        setError(t("credentials.errors.popupBlocked"))
         return
       }
 
@@ -212,12 +202,7 @@ export function useCredentialsPage() {
           return
         }
         if (!resp.auth_url || !resp.flow_id) {
-          throw new Error(
-            t(
-              "credentials.errors.invalidBrowserResponse",
-              "Invalid browser login response",
-            ),
-          )
+          throw new Error(t("credentials.errors.invalidBrowserResponse"))
         }
 
         authTab.location.href = resp.auth_url
@@ -242,7 +227,7 @@ export function useCredentialsPage() {
         setError(
           err instanceof Error
             ? err.message
-            : t("credentials.errors.loginFailed", "Login failed"),
+            : t("credentials.errors.loginFailed"),
         )
       }
     },
@@ -263,12 +248,7 @@ export function useCredentialsPage() {
         return
       }
       if (!resp.flow_id || !resp.user_code || !resp.verify_url) {
-        throw new Error(
-          t(
-            "credentials.errors.invalidDeviceResponse",
-            "Invalid device code response",
-          ),
-        )
+        throw new Error(t("credentials.errors.invalidDeviceResponse"))
       }
 
       const flow: OAuthFlowState = {
@@ -296,7 +276,7 @@ export function useCredentialsPage() {
       setError(
         err instanceof Error
           ? err.message
-          : t("credentials.errors.loginFailed", "Login failed"),
+          : t("credentials.errors.loginFailed"),
       )
     }
   }, [bumpActionToken, isActionTokenCurrent, t])
@@ -320,7 +300,7 @@ export function useCredentialsPage() {
         setError(
           err instanceof Error
             ? err.message
-            : t("credentials.errors.loginFailed", "Login failed"),
+            : t("credentials.errors.loginFailed"),
         )
       } finally {
         setActiveAction("")
@@ -342,7 +322,7 @@ export function useCredentialsPage() {
         setError(
           err instanceof Error
             ? err.message
-            : t("credentials.errors.logoutFailed", "Logout failed"),
+            : t("credentials.errors.logoutFailed"),
         )
       } finally {
         setActiveAction("")
@@ -415,17 +395,15 @@ export function useCredentialsPage() {
       return ""
     }
     if (activeFlow.status === "pending") {
-      return t("credentials.flow.pending", "Waiting for authorization...")
+      return t("credentials.flow.pending")
     }
     if (activeFlow.status === "success") {
-      return t("credentials.flow.success", "Authentication successful")
+      return t("credentials.flow.success")
     }
     if (activeFlow.status === "expired") {
-      return t("credentials.flow.expired", "Authentication session expired")
+      return t("credentials.flow.expired")
     }
-    return (
-      activeFlow.error || t("credentials.flow.error", "Authentication failed")
-    )
+    return activeFlow.error || t("credentials.flow.error")
   }, [activeFlow, t])
 
   return {
diff --git a/web/frontend/src/i18n/locales/en.json b/web/frontend/src/i18n/locales/en.json
index 0bde577d9..f1ed0ac16 100644
--- a/web/frontend/src/i18n/locales/en.json
+++ b/web/frontend/src/i18n/locales/en.json
@@ -6,7 +6,6 @@
     "credentials": "Credentials",
     "services": "Services",
     "channels_group": "Channels",
-    "channels": "Channels",
     "show_more_channels": "More",
     "show_less_channels": "Less",
     "config": "Config",
@@ -15,13 +14,8 @@
   "chat": {
     "welcome": "How can I help you today?",
     "welcomeDesc": "Ask me about weather, settings, or any other tasks. I'm here to assist you.",
-    "model": "Model",
-    "user": "User",
     "placeholder": "Start a new message...",
-    "attach": "Attach file",
-    "voice": "Voice input",
     "newChat": "New Chat",
-    "connecting": "Connecting...",
     "notConnected": "Gateway is not running. Start it to chat.",
     "thinking": {
       "step1": "Thinking...",
@@ -29,12 +23,6 @@
       "step3": "Preparing response...",
       "step4": "Almost there..."
     },
-    "time": {
-      "justNow": "just now",
-      "minsAgo": "{{count}}m ago",
-      "hoursAgo": "{{count}}h ago",
-      "daysAgo": "{{count}}d ago"
-    },
     "history": "History",
     "noHistory": "No chat history yet",
     "loadingMore": "Loading more...",
@@ -79,6 +67,9 @@
     "reset": "Reset",
     "confirm": "Confirm"
   },
+  "labels": {
+    "loading": "Loading..."
+  },
   "credentials": {
     "description": "Manage OAuth and token-based credentials for supported providers.",
     "loading": "Loading credentials...",
@@ -102,6 +93,7 @@
     "actions": {
       "browser": "Browser OAuth",
       "deviceCode": "Device Code",
+      "stopLoading": "Stop Loading",
       "saveToken": "Save",
       "logout": "Logout"
     },
@@ -146,9 +138,6 @@
   "models": {
     "description": "Configure API keys for AI providers. Only configured models are available for chat.",
     "loadError": "Failed to load models",
-    "header": {
-      "configured": "configured"
-    },
     "noDefaultHintPrefix": "No default model set yet. Click",
     "noDefaultHintSuffix": "to set one.",
     "status": {
@@ -185,8 +174,7 @@
     "delete": {
       "title": "Delete Model?",
       "description": "\"{{name}}\" will be permanently removed from your model list. This cannot be undone.",
-      "confirm": "Delete",
-      "errorDefault": "Cannot delete the default model. Please set another model as default first."
+      "confirm": "Delete"
     },
     "advanced": {
       "toggle": "Advanced options"
@@ -221,19 +209,10 @@
     }
   },
   "channels": {
-    "description": "Configure messaging channels to connect your AI agent to chat platforms.",
     "loadError": "Failed to load channels",
-    "search": "Search channels...",
-    "noResults": "No channels match your search.",
-    "header": {
-      "enabled": "enabled"
-    },
+    "edit": "Configure {{name}}",
     "status": {
-      "configured": "Configured",
-      "unconfigured": "Not configured"
-    },
-    "action": {
-      "configure": "Configure"
+      "configured": "Configured"
     },
     "name": {
       "telegram": "Telegram",
@@ -265,7 +244,6 @@
       "encryptKey": "Encrypt Key",
       "baseUrl": "API Base URL",
       "proxy": "HTTP Proxy",
-      "proxyHint": "Optional. e.g. http://127.0.0.1:7890",
       "mentionOnly": "Mention Only",
       "typingEnabled": "Typing Indicator",
       "placeholderEnabled": "Placeholder Message",
@@ -273,32 +251,17 @@
       "groupTriggerMentionOnly": "Group Mention Only",
       "groupTriggerPrefixes": "Group Trigger Prefixes",
       "allowFrom": "Allow From",
-      "allowFromHint": "Comma-separated list of allowed user/group IDs. Leave empty to allow all.",
       "allowFromPlaceholder": "e.g. 123456, 789012",
       "allowOrigins": "Allow Origins",
-      "allowOriginsHint": "Comma-separated list of allowed origins. Leave empty to allow all.",
       "allowOriginsPlaceholder": "e.g. https://example.com, http://localhost:5173",
       "secretPlaceholder": "Enter secret",
-      "secretPlaceholderSet": "Leave blank to keep existing",
       "secretHintSet": "A value is already set. Leave blank to keep it unchanged."
     },
-    "edit": {
-      "title": "Configure {{name}}",
-      "description": "Set up credentials and options for this channel.",
-      "saveError": "Failed to save channel configuration",
-      "saving": "Saving..."
-    },
     "page": {
       "notFound": "Channel \"{{name}}\" is not supported.",
       "saveSuccess": "Channel configuration saved.",
       "saveError": "Failed to save channel configuration",
-      "flowTitle": "Setup Flow",
-      "flowDescription": "Complete the following steps to put this channel into service.",
-      "step1": "Set credentials",
-      "step2": "Enable channel",
-      "step3": "Save and restart gateway",
       "enabled": "enabled",
-      "disabled": "disabled",
       "docLink": "Documentation",
       "enableLabel": "Enable channel"
     },
@@ -316,7 +279,6 @@
         "mentionOnly": "Only respond when the bot is explicitly mentioned in group chats.",
         "typingEnabled": "Display typing status while the assistant is generating a response.",
         "placeholderEnabled": "Enable temporary placeholder messages before the final reply is sent.",
-        "placeholderText": "Placeholder text shown while waiting for the final response.",
         "groupTriggerMentionOnly": "In group chats, respond only when the bot is mentioned.",
         "groupTriggerPrefixes": "Custom group-chat trigger prefixes, separated by commas.",
         "allowFrom": "Allowed user or group IDs, separated by commas.",
@@ -362,23 +324,8 @@
     }
   },
   "pages": {
-    "providers": {
-      "description": "Manage AI model providers and configurations."
-    },
-    "models": {
-      "description": "Manage AI models here."
-    },
-    "credentials": {
-      "description": "Securely manage your API keys and credentials."
-    },
     "config": {
-      "description": "System configuration and preferences.",
-      "visual_title": "Core Configuration",
-      "visual_desc": "Edit key runtime options here. Use Raw Config for full JSON editing.",
       "load_error": "Failed to load configuration. Please refresh and try again.",
-      "section_agents": "Agent Defaults",
-      "section_runtime": "Runtime",
-      "section_devices": "Devices",
       "workspace": "Workspace Directory",
       "workspace_hint": "Base directory for agent file operations.",
       "restrict_workspace": "Restrict to Workspace",
@@ -422,10 +369,6 @@
       "allowed_cidrs_placeholder": "192.168.1.0/24\n10.0.0.0/8",
       "launcher_load_error": "Failed to load service parameters.",
       "launcher_restart_hint": "Service parameter changes apply after restarting PicoClaw Web.",
-      "autostart_enable_success": "Launch at login has been enabled.",
-      "autostart_disable_success": "Launch at login has been disabled.",
-      "autostart_update_error": "Failed to update launch-at-login setting.",
-      "advanced_title": "Need full configuration access?",
       "advanced_desc": "Open the raw JSON page to edit every field directly.",
       "open_raw": "Raw Config",
       "back_to_visual": "Visual Config",
@@ -441,7 +384,6 @@
       "format_success": "JSON formatted successfully.",
       "format_error": "Invalid JSON format.",
       "format": "Format",
-      "lose_unsaved_changes": "You have unsaved changes. Are you sure you want to reset and lose these changes?",
       "unsaved_changes": "You have unsaved changes."
     },
     "logs": {
diff --git a/web/frontend/src/i18n/locales/zh.json b/web/frontend/src/i18n/locales/zh.json
index 00b4c0837..b66f0f03d 100644
--- a/web/frontend/src/i18n/locales/zh.json
+++ b/web/frontend/src/i18n/locales/zh.json
@@ -6,7 +6,6 @@
     "credentials": "凭据",
     "services": "服务",
     "channels_group": "频道",
-    "channels": "频道",
     "show_more_channels": "更多",
     "show_less_channels": "收起",
     "config": "配置",
@@ -15,13 +14,8 @@
   "chat": {
     "welcome": "今天我能为您做些什么？",
     "welcomeDesc": "您可以询问我天气、设置或其他任何任务，我随时为您效劳。",
-    "model": "模型",
-    "user": "用户",
     "placeholder": "输入新消息...",
-    "attach": "附加文件",
-    "voice": "语音输入",
     "newChat": "新建对话",
-    "connecting": "连接中...",
     "notConnected": "服务未运行，请先启动以进行对话。",
     "thinking": {
       "step1": "思考中...",
@@ -29,12 +23,6 @@
       "step3": "准备回复...",
       "step4": "马上就好..."
     },
-    "time": {
-      "justNow": "刚刚",
-      "minsAgo": "{{count}}分钟前",
-      "hoursAgo": "{{count}}小时前",
-      "daysAgo": "{{count}}天前"
-    },
     "history": "历史记录",
     "noHistory": "暂无对话历史",
     "loadingMore": "加载更多...",
@@ -79,6 +67,9 @@
     "reset": "重置",
     "confirm": "确认"
   },
+  "labels": {
+    "loading": "加载中..."
+  },
   "credentials": {
     "description": "管理已支持服务商的 OAuth 与 Token 凭据。",
     "loading": "正在加载凭据...",
@@ -102,6 +93,7 @@
     "actions": {
       "browser": "浏览器 OAuth",
       "deviceCode": "设备码",
+      "stopLoading": "停止加载",
       "saveToken": "保存",
       "logout": "退出登录"
     },
@@ -146,9 +138,6 @@
   "models": {
     "description": "为 AI 服务商配置 API Key。只有已配置的模型可用于对话。",
     "loadError": "加载模型列表失败",
-    "header": {
-      "configured": "已配置"
-    },
     "noDefaultHintPrefix": "尚未设置默认模型，点击",
     "noDefaultHintSuffix": "设为默认。",
     "status": {
@@ -185,8 +174,7 @@
     "delete": {
       "title": "确认删除模型？",
       "description": "「{{name}}」将从模型列表中永久移除，此操作不可撤销。",
-      "confirm": "删除",
-      "errorDefault": "无法删除默认模型。请先将其他模型设为默认。"
+      "confirm": "删除"
     },
     "advanced": {
       "toggle": "高级选项"
@@ -221,19 +209,10 @@
     }
   },
   "channels": {
-    "description": "配置消息频道，将 AI 助手连接到各聊天平台。",
     "loadError": "加载频道列表失败",
-    "search": "搜索频道...",
-    "noResults": "没有匹配的频道。",
-    "header": {
-      "enabled": "已启用"
-    },
+    "edit": "配置 {{name}}",
     "status": {
-      "configured": "已配置",
-      "unconfigured": "未配置"
-    },
-    "action": {
-      "configure": "配置"
+      "configured": "已配置"
     },
     "name": {
       "telegram": "Telegram",
@@ -265,7 +244,6 @@
       "encryptKey": "Encrypt Key",
       "baseUrl": "API Base URL",
       "proxy": "HTTP 代理",
-      "proxyHint": "可选。例如 http://127.0.0.1:7890",
       "mentionOnly": "仅提及时响应",
       "typingEnabled": "输入中提示",
       "placeholderEnabled": "占位消息",
@@ -273,32 +251,17 @@
       "groupTriggerMentionOnly": "群聊仅提及时响应",
       "groupTriggerPrefixes": "群聊触发前缀",
       "allowFrom": "允许来源",
-      "allowFromHint": "用逗号分隔的用户/群组 ID 列表，留空表示允许所有。",
       "allowFromPlaceholder": "例如 123456, 789012",
       "allowOrigins": "允许来源域名",
-      "allowOriginsHint": "用逗号分隔允许的 Origin，留空表示允许所有。",
       "allowOriginsPlaceholder": "例如 https://example.com, http://localhost:5173",
       "secretPlaceholder": "输入密钥",
-      "secretPlaceholderSet": "留空保持原有值不变",
       "secretHintSet": "已设置密钥，留空表示不修改。"
     },
-    "edit": {
-      "title": "配置 {{name}}",
-      "description": "设置此频道的凭据和选项。",
-      "saveError": "保存频道配置失败",
-      "saving": "保存中..."
-    },
     "page": {
       "notFound": "不支持频道“{{name}}”。",
       "saveSuccess": "频道配置已保存。",
       "saveError": "保存频道配置失败",
-      "flowTitle": "配置流程",
-      "flowDescription": "按以下步骤完成频道接入并投入使用。",
-      "step1": "填写凭据",
-      "step2": "启用频道",
-      "step3": "保存并重启网关",
       "enabled": "已启用",
-      "disabled": "未启用",
       "docLink": "配置文档",
       "enableLabel": "启用频道"
     },
@@ -316,7 +279,6 @@
         "mentionOnly": "在群聊中仅当明确提及时才响应。",
         "typingEnabled": "在生成回复时显示“正在输入”状态。",
         "placeholderEnabled": "在最终回复发送前，先发送临时占位消息。",
-        "placeholderText": "等待最终回复期间显示的占位文案。",
         "groupTriggerMentionOnly": "在群聊中仅当提及机器人时才响应。",
         "groupTriggerPrefixes": "群聊触发前缀，多个值用逗号分隔。",
         "allowFrom": "允许访问的用户或群组 ID，多个值用逗号分隔。",
@@ -362,23 +324,8 @@
     }
   },
   "pages": {
-    "providers": {
-      "description": "管理各个 AI 模型服务商的接入配置。"
-    },
-    "models": {
-      "description": "在此管理您下载或借用的 AI 模型。"
-    },
-    "credentials": {
-      "description": "安全管理您的 API 密钥与访问凭据。"
-    },
     "config": {
-      "description": "系统配置和偏好设置。",
-      "visual_title": "核心配置",
-      "visual_desc": "这里可编辑关键运行配置；若需完整字段请使用原始配置页。",
       "load_error": "加载配置失败，请刷新后重试。",
-      "section_agents": "智能体默认设置",
-      "section_runtime": "运行时",
-      "section_devices": "设备功能",
       "workspace": "工作目录",
       "workspace_hint": "智能体执行文件读写操作时使用的基础目录。",
       "restrict_workspace": "限制工作目录访问",
@@ -422,10 +369,6 @@
       "allowed_cidrs_placeholder": "192.168.1.0/24\n10.0.0.0/8",
       "launcher_load_error": "加载服务参数失败。",
       "launcher_restart_hint": "服务参数变更需重启 PicoClaw Web 后生效。",
-      "autostart_enable_success": "已开启开机自启。",
-      "autostart_disable_success": "已关闭开机自启。",
-      "autostart_update_error": "更新开机自启设置失败。",
-      "advanced_title": "需要完整配置能力？",
       "advanced_desc": "可打开原始 JSON 页面直接编辑全部字段。",
       "open_raw": "原始配置",
       "back_to_visual": "可视化配置",
@@ -441,7 +384,6 @@
       "format_success": "JSON 格式化成功。",
       "format_error": "JSON 格式无效。",
       "format": "格式化",
-      "lose_unsaved_changes": "您有未保存的更改。确定要重置并丢失这些更改吗？",
       "unsaved_changes": "您有未保存的更改。"
     },
     "logs": {
diff --git a/web/frontend/src/routeTree.gen.ts b/web/frontend/src/routeTree.gen.ts
index 9fd17ae41..336504075 100644
--- a/web/frontend/src/routeTree.gen.ts
+++ b/web/frontend/src/routeTree.gen.ts
@@ -9,7 +9,6 @@
 // Additionally, you should also exclude this file from your linter and/or formatter to prevent it from being checked or modified.
 
 import { Route as rootRouteImport } from './routes/__root'
-import { Route as ProvidersRouteImport } from './routes/providers'
 import { Route as ModelsRouteImport } from './routes/models'
 import { Route as LogsRouteImport } from './routes/logs'
 import { Route as CredentialsRouteImport } from './routes/credentials'
@@ -19,11 +18,6 @@ import { Route as IndexRouteImport } from './routes/index'
 import { Route as ConfigRawRouteImport } from './routes/config.raw'
 import { Route as ChannelsNameRouteImport } from './routes/channels/$name'
 
-const ProvidersRoute = ProvidersRouteImport.update({
-  id: '/providers',
-  path: '/providers',
-  getParentRoute: () => rootRouteImport,
-} as any)
 const ModelsRoute = ModelsRouteImport.update({
   id: '/models',
   path: '/models',
@@ -72,7 +66,6 @@ export interface FileRoutesByFullPath {
   '/credentials': typeof CredentialsRoute
   '/logs': typeof LogsRoute
   '/models': typeof ModelsRoute
-  '/providers': typeof ProvidersRoute
   '/channels/$name': typeof ChannelsNameRoute
   '/config/raw': typeof ConfigRawRoute
 }
@@ -83,7 +76,6 @@ export interface FileRoutesByTo {
   '/credentials': typeof CredentialsRoute
   '/logs': typeof LogsRoute
   '/models': typeof ModelsRoute
-  '/providers': typeof ProvidersRoute
   '/channels/$name': typeof ChannelsNameRoute
   '/config/raw': typeof ConfigRawRoute
 }
@@ -95,7 +87,6 @@ export interface FileRoutesById {
   '/credentials': typeof CredentialsRoute
   '/logs': typeof LogsRoute
   '/models': typeof ModelsRoute
-  '/providers': typeof ProvidersRoute
   '/channels/$name': typeof ChannelsNameRoute
   '/config/raw': typeof ConfigRawRoute
 }
@@ -108,7 +99,6 @@ export interface FileRouteTypes {
     | '/credentials'
     | '/logs'
     | '/models'
-    | '/providers'
     | '/channels/$name'
     | '/config/raw'
   fileRoutesByTo: FileRoutesByTo
@@ -119,7 +109,6 @@ export interface FileRouteTypes {
     | '/credentials'
     | '/logs'
     | '/models'
-    | '/providers'
     | '/channels/$name'
     | '/config/raw'
   id:
@@ -130,7 +119,6 @@ export interface FileRouteTypes {
     | '/credentials'
     | '/logs'
     | '/models'
-    | '/providers'
     | '/channels/$name'
     | '/config/raw'
   fileRoutesById: FileRoutesById
@@ -142,18 +130,10 @@ export interface RootRouteChildren {
   CredentialsRoute: typeof CredentialsRoute
   LogsRoute: typeof LogsRoute
   ModelsRoute: typeof ModelsRoute
-  ProvidersRoute: typeof ProvidersRoute
 }
 
 declare module '@tanstack/react-router' {
   interface FileRoutesByPath {
-    '/providers': {
-      id: '/providers'
-      path: '/providers'
-      fullPath: '/providers'
-      preLoaderRoute: typeof ProvidersRouteImport
-      parentRoute: typeof rootRouteImport
-    }
     '/models': {
       id: '/models'
       path: '/models'
@@ -243,7 +223,6 @@ const rootRouteChildren: RootRouteChildren = {
   CredentialsRoute: CredentialsRoute,
   LogsRoute: LogsRoute,
   ModelsRoute: ModelsRoute,
-  ProvidersRoute: ProvidersRoute,
 }
 export const routeTree = rootRouteImport
   ._addFileChildren(rootRouteChildren)
diff --git a/web/frontend/src/routes/config.raw.tsx b/web/frontend/src/routes/config.raw.tsx
index bb979f47c..02ce55dfd 100644
--- a/web/frontend/src/routes/config.raw.tsx
+++ b/web/frontend/src/routes/config.raw.tsx
@@ -15,13 +15,11 @@ function RawConfigPage() {
 
   return (
     <div className="flex h-full flex-col">
-      <PageHeader
-        title={t("pages.config.raw_json_title", "Raw JSON Configuration")}
-      >
+      <PageHeader title={t("pages.config.raw_json_title")}>
         <Button variant="outline" asChild>
           <Link to="/config">
             <IconAdjustments className="size-4" />
-            {t("pages.config.back_to_visual", "Visual Config")}
+            {t("pages.config.back_to_visual")}
           </Link>
         </Button>
       </PageHeader>
diff --git a/web/frontend/src/routes/logs.tsx b/web/frontend/src/routes/logs.tsx
index 75a9fe632..39688bd84 100644
--- a/web/frontend/src/routes/logs.tsx
+++ b/web/frontend/src/routes/logs.tsx
@@ -87,15 +87,15 @@ function LogsPage() {
 
   return (
     <div className="flex h-full flex-col">
-      <PageHeader title={t("navigation.logs", "Logs")} />
+      <PageHeader title={t("navigation.logs")} />
 
       <div className="flex flex-1 flex-col overflow-hidden p-4 sm:p-8">
         <div className="mb-4">
           <h1 className="text-2xl font-semibold tracking-tight">
-            {t("navigation.logs", "Logs")}
+            {t("navigation.logs")}
           </h1>
           <p className="text-muted-foreground mt-2 text-sm">
-            {t("pages.logs.description", "System logs and monitoring.")}
+            {t("pages.logs.description")}
           </p>
         </div>
 
diff --git a/web/frontend/src/routes/providers.tsx b/web/frontend/src/routes/providers.tsx
deleted file mode 100644
index 6397bf858..000000000
--- a/web/frontend/src/routes/providers.tsx
+++ /dev/null
@@ -1,30 +0,0 @@
-import { createFileRoute } from "@tanstack/react-router"
-import { useTranslation } from "react-i18next"
-
-import { PageHeader } from "@/components/page-header"
-
-export const Route = createFileRoute("/providers")({
-  component: ProvidersPage,
-})
-
-function ProvidersPage() {
-  const { t } = useTranslation()
-  return (
-    <div className="flex h-full flex-col">
-      <PageHeader title={t("navigation.providers", "Providers")} />
-      <div className="flex flex-1 items-center justify-center p-8">
-        <div className="text-center">
-          <h1 className="text-2xl font-semibold tracking-tight">
-            {t("navigation.providers", "Providers")}
-          </h1>
-          <p className="text-muted-foreground mt-2 text-sm">
-            {t(
-              "pages.providers.description",
-              "Manage AI model providers and configurations.",
-            )}
-          </p>
-        </div>
-      </div>
-    </div>
-  )
-}