fix: Docker path translation for review_changes and code deduplication

- Fixed review_changes tool to properly translate host paths to container paths in Docker
- Prevents "No such file or directory" errors when running in Docker containers
- Added proper error handling with clear messages when paths are inaccessible

refactor: Centralized token limit validation across all tools
- Added _validate_token_limit method to BaseTool to eliminate code duplication
- Reduced ~25 lines of duplicated code across 5 tools (analyze, chat, debug_issue, review_code, think_deeper)
- Maintains exact same error messages and behavior

feat: Enhanced large prompt handling
- Added support for prompts >50K chars by requesting file-based input
- Preserves MCP's ~25K token capacity for responses
- All tools now check prompt size before processing

test: Added comprehensive Docker path integration tests
- Tests for path translation, security validation, and error handling
- Tests for review_changes tool specifically with Docker paths
- Fixed failing think_deeper test (updated default from "max" to "high")

chore: Code quality improvements
- Applied black formatting across all files
- Fixed import sorting with isort
- All tests passing (96 tests)
- Standardized error handling follows MCP TextContent format

The changes ensure consistent behavior across all environments while reducing code duplication and improving maintainability.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

setup-docker-env.bat

@@ -40,6 +40,16 @@ echo ===== COPY BELOW THIS LINE =====
 echo {
 echo   "mcpServers": {
 echo     "gemini": {
+echo       "command": "%CURRENT_DIR%\gemini-mcp-docker.bat"
+echo     }
+echo   }
+echo }
+echo ===== COPY ABOVE THIS LINE =====
+echo.
+echo Alternative: If you prefer the direct Docker command ^(static workspace^):
+echo {
+echo   "mcpServers": {
+echo     "gemini": {
 echo       "command": "docker",
 echo       "args": [
 echo         "run",
@@ -52,10 +62,9 @@ echo       ]
 echo     }
 echo   }
 echo }
-echo ===== COPY ABOVE THIS LINE =====
 echo.
 echo Config file location:
 echo   Windows: %%APPDATA%%\Claude\claude_desktop_config.json
 echo.
-echo Note: The configuration above mounts the current directory ^(%CURRENT_DIR%^)
-echo as the workspace. You can change this path to any project directory you want to analyze.
+echo Note: The first configuration uses a wrapper script that allows you to run Claude
+echo from any directory. The second configuration mounts a fixed directory ^(%CURRENT_DIR%^).