Bootstrap coulomb-social: INTENT, SCOPE, TRSL, agent files, State Hub

Prepare the greenfield rebuild of coulomb.social (bubble.io exit) with
orientation docs, TRSL license, Claude/Codex agent integration, and repo
classification under domain communication / topic coulomb-social. Workplan
CSOC-WP-0001 (exit assessment) is already registered via fix-consistency.

.claude/rules/stack-and-commands.md

@@ -0,0 +1,24 @@
+## Stack
+
+Greenfield rebuild. Application stack is **not yet chosen**; expect alignment
+with the business delivery lane (`vergabe-teilnahme` is Django + Vite today).
+Decide stack only after CSOC-WP-0001 feature cut if it affects export/schema.
+
+- **Language:** TBD (implementation starts in CSOC-WP-0002)
+- **Hosting:** Railiance (railiance01) via `railiance-apps` release values
+- **Registry:** `gitea.coulomb.social/coulomb/coulomb-social`
+- **License:** TRSL V1C1 (`LICENSE`)
+
+## Dev Commands
+
+```bash
+# Orientation (always available)
+cat INTENT.md SCOPE.md .custodian-brief.md
+ls workplans/
+
+# State Hub
+curl -s http://127.0.0.1:8000/state/health
+statehub fix-consistency
+
+# After application scaffold exists, add install / test / lint / build here.
+```