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- Removed outdated recommendations document.

cli/src/castle_cli/manifest.py

@@ -302,6 +302,21 @@ class ComponentManifest(BaseModel):
 
         return sorted(roles, key=lambda r: r.value)
 
+    @property
+    def source_dir(self) -> str | None:
+        """Best-effort relative directory for this component's source.
+
+        Resolution order: run.working_dir → build.working_dir → tool.source (strip trailing /).
+        Returns None if no directory can be determined.
+        """
+        if self.run and self.run.working_dir:
+            return self.run.working_dir
+        if self.build and self.build.working_dir:
+            return self.build.working_dir
+        if self.tool and self.tool.source:
+            return self.tool.source.rstrip("/")
+        return None
+
     @model_validator(mode="after")
     def _basic_consistency(self) -> ComponentManifest:
         if self.manage and self.manage.systemd and self.manage.systemd.enable: