Close out statehub-register bootstrap housekeeping (GLAS-0001)

Refined the auto-generated SCOPE.md/AGENTS.md from generic templates
to real repo specifics, added a Developer Workflow section with
actual install/test/run commands. Real workplan (GLAS-WP-0001) was
already seeded and done.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

AGENTS.md

@@ -11,6 +11,24 @@
 
 ---
 
+## Developer Workflow
+
+```bash
+# Install (editable, pulls in the sand-boxer sibling checkout)
+python3 -m venv .venv && source .venv/bin/activate
+pip install -e . -e ../sand-boxer pytest
+
+# Test
+python3 -m pytest tests/ -q
+
+# Run — resolves a sand-boxer sandbox, runs one task through a rein, verifies
+glas-harness run --sandbox-profile profile.bwrap-local \
+  --repo <path> --title "..." --description "..."
+```
+
+No separate lint/build step — this is a plain library + CLI, no packaging
+pipeline beyond `pip install -e .`.
+
 ## State Hub Integration
 
 The Custodian State Hub tracks work across all domains. Interact via HTTP REST —