docs: Document subagent infrastructure resolution and environment restoration

- Update ProjectStatusDigest.md with Ubuntu 24.04 environment restoration
- Document operational custom subagent ecosystem with specialized task delegation
- Add automated dependency management system (install-pip.sh, install-depends.sh)
- Mark custom subagent blocking issue as resolved in RelevantClaudeIssues.md
- Update getting started instructions with new installation scripts
- Confirm all 6 subagent types now functional: general-purpose, claude-expert,
  project-assistant, fortune-wisdom-guide, statusline-setup, output-style-setup

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

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

ProjectStatusDigest.md

@@ -1,7 +1,7 @@
 # MarkiTect Project - Status Digest
 
 **Version:** 0.1.0
-**Last Updated:** 2025-09-22
+**Last Updated:** 2025-09-23
 **Tagline:** "Your Markdown, Redefined"
 
 ## Core Vision
@@ -76,6 +76,8 @@ Complete specification coverage including:
 - **Comprehensive test suite** with 20 passing tests and pytest integration
 - **Build system** with sophisticated Makefile and virtual environment integration
 - **AI-assisted development** cycle with workspace management
+- **Ubuntu 24.04 environment restored** with automated dependency management
+- **Custom subagent infrastructure operational** with specialized task delegation
 
 ### Social Integration
 - **CoulombSocial participation** since September 2025
@@ -91,6 +93,8 @@ Complete specification coverage including:
 - **Git submodules** for wiki documentation management
 - **tddai library** for complete TDD workspace automation
 - **Issue management** with Gitea API integration and CLI tools
+- **Custom subagent ecosystem** with specialized agents for project management, Claude expertise, and development guidance
+- **Automated dependency management** with `install-pip.sh` and `install-depends.sh` scripts
 
 ### Brand Identity
 - **Professional visual identity** with 3D "M" logo incorporating Markdown symbols
@@ -119,6 +123,9 @@ markitect_project/
 ├── wiki/                # Git submodule with comprehensive documentation
 ├── Makefile             # Development workflow automation with TDD targets
 ├── pyproject.toml       # Python package configuration
+├── install-pip.sh       # Python dependency automation script
+├── install-depends.sh   # System dependency installation script
+├── RelevantClaudeIssues.md # Claude Code issue tracking and resolution
 ├── ProjectStatusDigest.md  # This document
 ├── ProjectDiary.md      # Development milestone tracking
 └── README.md            # Project overview
@@ -128,8 +135,9 @@ markitect_project/
 
 1. **Environment Setup:**
    ```bash
-   make setup          # Create venv and install dependencies
-   make venv-status    # Check environment activation state
+   sudo ./install-depends.sh   # Install system dependencies (Ubuntu 24.04)
+   ./install-pip.sh            # Install Python dependencies and package
+   make venv-status            # Check environment activation state
    ```
 
 2. **Development Workflow:**