feat: Add various tools for document processing and management

- Introduced `docx-extractor` for extracting content and metadata from Word .docx files.
- Added `docx2md` for converting Word .docx files to Markdown format.
- Implemented `gpt` for generating text using OpenAI's GPT models.
- Created `html2text` for converting HTML content to plain text.
- Developed `mbox2eml` for converting MBOX mailbox files to individual .eml files.
- Added `md2pdf` for converting Markdown files to PDF format.
- Introduced `mdscraper` for combining text files into a single markdown document.
- Created `pdf-extractor` for extracting content and metadata from PDF files.
- Developed `pdf2md` for converting PDF files to Markdown format.
- Implemented `protonmail` for managing ProtonMail emails via Bridge.
- Added `schedule` for managing systemd timers and services.
- Introduced `search` for managing searchable collections of files.
- Added `text-extractor` for extracting content and metadata from text files.
- Removed outdated recommendations document.

CLAUDE.md

@@ -28,18 +28,18 @@ When creating a new service, tool, or frontend, follow the detailed guides:
 ```bash
 # Service
 castle create my-service --type service --description "Does something"
-cd my-service && uv sync
+cd components/my-service && uv sync
 uv run my-service               # starts on auto-assigned port
 castle service enable my-service # register with systemd
 castle gateway reload            # update reverse proxy routes
 
 # Tool
 castle create my-tool --type tool --description "Does something"
-cd my-tool && uv sync
+cd components/my-tool && uv sync
 ```
 
-The `castle create` command scaffolds the project, generates a CLAUDE.md,
-and registers it in `castle.yaml` as a `ComponentManifest`.
+The `castle create` command scaffolds the project under `components/`,
+generates a CLAUDE.md, and registers it in `castle.yaml` as a `ComponentManifest`.
 
 ## Castle CLI