feat: Implement CLI tool, Celery workers, and VMware collector

Complete implementation of core MVP components:

CLI Tool (src/datacenter_docs/cli.py):
- 11 commands for system management (serve, worker, init-db, generate, etc.)
- Auto-remediation policy management (enable/disable/status)
- System statistics and monitoring
- Rich formatted output with tables and panels

Celery Workers (src/datacenter_docs/workers/):
- celery_app.py with 4 specialized queues (documentation, auto_remediation, data_collection, maintenance)
- tasks.py with 8 async tasks integrated with MongoDB/Beanie
- Celery Beat scheduling (6h docs, 1h data collection, 15m metrics, 2am cleanup)
- Rate limiting (10 auto-remediation/h) and timeout configuration
- Task lifecycle signals and comprehensive logging

VMware Collector (src/datacenter_docs/collectors/):
- BaseCollector abstract class with full workflow (connect/collect/validate/store/disconnect)
- VMwareCollector for vSphere infrastructure data collection
- Collects VMs, ESXi hosts, clusters, datastores, networks with statistics
- MCP client integration with mock data fallback for development
- MongoDB storage via AuditLog and data validation

Documentation & Configuration:
- Updated README.md with CLI commands and Workers sections
- Updated TODO.md with project status (55% completion)
- Added CLAUDE.md with comprehensive project instructions
- Added Docker compose setup for development environment

Project Status:
- Completion: 50% -> 55%
- MVP Milestone: 80% complete (only Infrastructure Generator remaining)
- Estimated time to MVP: 1-2 days

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

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

pyproject.toml

@@ -8,7 +8,7 @@ readme = "README.md"
 packages = [{include = "datacenter_docs", from = "src"}]
 
 [tool.poetry.dependencies]
-python = "^3.14"
+python = "^3.12"
 
 # Web Framework
 fastapi = "^0.115.0"
@@ -24,7 +24,7 @@ beanie = "^1.27.0"  # ODM for MongoDB
 
 # MCP (Model Context Protocol)
 # mcp = "^0.1.0"  # Package name might be different
-anthropic = "^0.42.0"
+openai = "^1.58.0"  # OpenAI-compatible API for multiple LLM providers
 
 # Network and Device Management
 paramiko = "^3.5.0"
@@ -75,7 +75,7 @@ flower = "^2.0.1"
 
 # LLM Integration
 langchain = "^0.3.0"
-langchain-anthropic = "^0.3.0"
+langchain-community = "^0.3.0"
 # chromadb = "^0.5.0"  # Requires Visual C++ Build Tools on Windows
 
 [tool.poetry.group.dev.dependencies]
@@ -100,7 +100,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.black]
 line-length = 100
-target-version = ['py314']
+target-version = ['py312']
 include = '\.pyi?$'
 
 [tool.ruff]
@@ -115,7 +115,7 @@ ignore = ["E501"]
 "src/datacenter_docs/api/main_enhanced.py" = ["F821"]
 
 [tool.mypy]
-python_version = "3.14"
+python_version = "3.12"
 warn_return_any = true
 warn_unused_configs = true
 disallow_untyped_defs = true