Fix 9 seam-review findings

- Pinned target's profitability flag now overrides the extractor's bucket guess
- Extractor/target periods canonicalized so ledger forecast chaining matches
- autoRunOnDrop no longer error-loops on ungradeable inbox content; failed
  batches count as seen
- Ship 2 default graders (pipeline requires >=2 valid reports per deck)
- UI styles 'failed' deck chips as errors; .markdown discoverable
- Unknown adjudicator model disables adjudication loudly instead of silently
- Reserved rids extractor/adjudicator; teardown also clears bm-grader-* containers

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

orchestrator/graders.py

@@ -83,6 +83,9 @@ def roster(cfg: dict) -> list[dict]:
     for w in (cfg.get("graders") or []):
         name = (w.get("name") or "grader").strip()
         rid = slug(name)
+        if rid in ("extractor", "adjudicator"):
+            # reserved role ids: personas/containers/outputs would collide
+            rid = f"{rid}-grader"
         if rid in seen:
             seen[rid] += 1
             rid = f"{rid}-{seen[rid]}"