feat: Add new tools and configurations for Castle platform

- Introduced `uv.lock` for dependency management with various packages including `pytest`, `colorama`, and `pluggy`.
- Added `pyrightconfig.json` for Python type checking configuration.
- Expanded `recommendations.md` with detailed scaling recommendations and project management strategies.
- Created shared `ruff.toml` for consistent linting across projects.
- Developed `Castle Tools` with various utilities including Android backup, browser automation, document conversion, and search tools.
- Implemented `backup-collect` and `schedule` tools for system administration tasks.
- Enhanced `search` functionality with indexing and querying capabilities using Tantivy.
- Added comprehensive documentation for each tool, including usage examples and installation instructions.

protonmail/CLAUDE.md

@@ -0,0 +1,40 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working
+with code in this repository.
+
+## Overview
+
+protonmail is a CLI tool for accessing and managing ProtonMail emails via Bridge.
+All commands work with local cached .eml files for fast, offline access.
+
+## Commands
+
+```bash
+uv sync                            # Install dependencies
+uv run protonmail --version        # Show version
+uv run protonmail sync             # Sync emails from Bridge
+uv run protonmail list             # List cached emails
+uv run protonmail read <file>      # Read a specific email
+uv run protonmail search <query>   # Search by subject/sender
+uv run pytest tests/ -v            # Run tests
+uv run ruff check .                # Lint
+uv run ruff format .               # Format
+```
+
+## Architecture
+
+- `src/protonmail/main.py` — CLI entry point, all email operations
+- `src/protonmail/__init__.py` — Package version (`__version__`)
+- `tests/` — pytest tests
+
+## Configuration
+
+Environment variables (set by castle or manually):
+- `PROTONMAIL_USERNAME` — ProtonMail Bridge username
+- `PROTONMAIL_API_KEY` — ProtonMail Bridge API key
+- `PROTONMAIL_DATA_DIR` — Where to store synced .eml files (default: /data/messages/email/protonmail)
+
+## Dependencies
+
+stdlib-only — no third-party packages required.