Add state-hub v0.1 — local-first state service for the Custodian

Implements the first live layer of the Custodian cognitive infrastructure:
PostgreSQL schema, FastAPI REST API, FastMCP stdio server, and Observable
Framework telemetry dashboard.

- state-hub/: full stack (docker-compose, FastAPI, Alembic, MCP server, dashboard)
- 5 DB tables: topics, workstreams, tasks, decisions, progress_events
- 11 MCP tools + 5 resources registered in .mcp.json
- Observable dashboard: Overview, Workstreams, Decisions, Progress pages
- CLAUDE.md: session protocol (get_state_summary / add_progress_event ritual)
- ~/.claude/CLAUDE.md: global cross-project reference to the hub
- scripts/pull_image.py: WSL2 TLS-resilient Docker image downloader

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,32 @@
+[project]
+name = "state-hub"
+version = "0.1.0"
+description = "Custodian State Hub — PostgreSQL + FastAPI + MCP server"
+requires-python = ">=3.12"
+dependencies = [
+    "fastapi>=0.115.0",
+    "uvicorn[standard]>=0.32.0",
+    "sqlalchemy[asyncio]>=2.0.0",
+    "asyncpg>=0.30.0",
+    "alembic>=1.14.0",
+    "pydantic>=2.10.0",
+    "pydantic-settings>=2.7.0",
+    "httpx>=0.28.0",
+    "fastmcp>=2.0.0",
+    "python-dotenv>=1.0.0",
+    "psycopg2-binary>=2.9.0",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["api", "mcp_server"]
+
+[tool.uv]
+dev-dependencies = [
+    "pytest>=8.0.0",
+    "pytest-asyncio>=0.24.0",
+    "httpx>=0.28.0",
+]