feat: Add uninstall script and update docs

- Create a standalone `scripts/uninstall.sh` script to completely remove the executable, configuration, and workspace data.
- Update `make install` to copy the uninstaller script to the installation path (`picoclaw-uninstall`).
- Add an "Uninstallation" section to the `README.md` file.

Co-authored-by: TanLuong <28281768+TanLuong@users.noreply.github.com>

Makefile

@@ -196,6 +196,9 @@ install: build
 	@chmod +x $(INSTALL_BIN_DIR)/$(BINARY_NAME)$(INSTALL_TMP_SUFFIX)
 	@mv -f $(INSTALL_BIN_DIR)/$(BINARY_NAME)$(INSTALL_TMP_SUFFIX) $(INSTALL_BIN_DIR)/$(BINARY_NAME)
 	@echo "Installed binary to $(INSTALL_BIN_DIR)/$(BINARY_NAME)"
+	@cp scripts/uninstall.sh $(INSTALL_BIN_DIR)/$(BINARY_NAME)-uninstall
+	@chmod +x $(INSTALL_BIN_DIR)/$(BINARY_NAME)-uninstall
+	@echo "Installed uninstaller script to $(INSTALL_BIN_DIR)/$(BINARY_NAME)-uninstall"
 	@echo "Installation complete!"
 
 ## uninstall: Remove picoclaw from system

README.md

@@ -346,6 +346,16 @@ picoclaw gateway
 
 </details>
 
+### Uninstallation
+
+To completely remove PicoClaw and all of its associated data (including configuration and workspace), you can use the uninstall script that was installed alongside the application:
+
+```bash
+picoclaw-uninstall
+```
+
+This will automatically remove the executable, your `~/.picoclaw` directory, and the uninstaller script itself.
+
 ## 🔌 Providers (LLM)
 
 PicoClaw supports 30+ LLM providers through the `model_list` configuration. Use the `protocol/model` format:

scripts/uninstall.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# picoclaw-uninstall
+# This script uninstalls PicoClaw and all of its associated data.
+
+set -e
+
+# Default installation paths (matching the Makefile)
+INSTALL_PREFIX="${HOME}/.local"
+INSTALL_BIN_DIR="${INSTALL_PREFIX}/bin"
+BINARY_NAME="picoclaw"
+PICOCLAW_HOME="${HOME}/.picoclaw"
+
+echo "Uninstalling PicoClaw..."
+
+# Remove the executable binary
+if [ -f "${INSTALL_BIN_DIR}/${BINARY_NAME}" ]; then
+  rm -f "${INSTALL_BIN_DIR}/${BINARY_NAME}"
+  echo "Removed executable: ${INSTALL_BIN_DIR}/${BINARY_NAME}"
+else
+  echo "Executable ${INSTALL_BIN_DIR}/${BINARY_NAME} not found. Skipping."
+fi
+
+# Remove the workspace and configurations
+if [ -d "${PICOCLAW_HOME}" ]; then
+  rm -rf "${PICOCLAW_HOME}"
+  echo "Removed all workspace and configuration data: ${PICOCLAW_HOME}"
+else
+  echo "Data directory ${PICOCLAW_HOME} not found. Skipping."
+fi
+
+# Remove the uninstaller script itself
+SCRIPT_PATH="${INSTALL_BIN_DIR}/picoclaw-uninstall"
+if [ -f "${SCRIPT_PATH}" ]; then
+  rm -f "${SCRIPT_PATH}"
+  echo "Removed uninstaller script: ${SCRIPT_PATH}"
+fi
+
+echo "PicoClaw uninstallation complete!"