fix: bug: supervisor hardcodes ops repo expectation — fails silently on deployments without one (#544)

Add OPS repo presence detection in supervisor-run.sh with degraded mode support:
- Detect if OPS_REPO_ROOT is missing and log WARNING message
- Set OPS_REPO_DEGRADED=1 flag and configure fallback paths
- Bundle minimal knowledge files as fallback for degraded mode
- Update formula to use OPS_KNOWLEDGE_ROOT, OPS_JOURNAL_ROOT, OPS_VAULT_ROOT
- Support local vault destination and journal fallback when ops repo absent

Knowledge files bundled: disk.md, memory.md, ci.md, git.md, dev-agent.md,
review-agent.md, forge.md

The supervisor now runs with full functionality when ops repo is available,
or gracefully degrades to local paths when absent, making the failure mode
explicit rather than silent.

knowledge/dev-agent.md

@@ -0,0 +1,28 @@
+# Dev Agent — Best Practices
+
+## Dev Agent Issues (P2)
+
+When dev-agent is stuck, blocked, or in bad state:
+
+### Dead Lock File
+```bash
+# Check if process still exists
+ps -p $(cat /path/to/lock.file) 2>/dev/null || rm -f /path/to/lock.file
+```
+
+### Stale Worktree Cleanup
+```bash
+cd "$PROJECT_REPO_ROOT"
+git worktree remove --force /tmp/stale-worktree 2>/dev/null || true
+git worktree prune 2>/dev/null || true
+```
+
+### Blocked Pipeline
+- Check if PR is awaiting review or CI
+- Verify no other agent is actively working on same issue
+- Check for unmet dependencies (issues with `Depends on` refs)
+
+### Prevention
+- Single-threaded pipeline per project (AD-002)
+- Clear lock files in EXIT traps
+- Use phase files to track agent state