fix: per-entity Step 0.55, LAW 7 sub-run quiet, default 2, canonical SKILL.md (#311)

Four fixes based on 2026-04-22 test-window feedback on v3.0.11 --competitors:

- Each competitor sub-run now runs Step 0.55 (X handle / subreddits /
  GitHub) via resolve.auto_resolve inside the fanout closure. Deep-copied
  config per entity prevents _auto_resolve_context leak across sub-runs.
  Resolved data stored on report.artifacts["resolved"] for the renderer.
- New internal_subrun keyword on planner.plan_query and pipeline.run
  suppresses the LAW 7 "No --plan passed" stderr for engine-internal
  fan-out only. Default path unchanged.
- Default --competitors count is now 2 (3-way total). --competitors=N
  still customizes; range 1..6.
- SKILL.md STEP 0 canonical-path self-check forces readers who loaded
  from marketplaces/ (auto-restored to origin/main, stale) to re-read
  from plugins/cache/last30days-skill/last30days/{VERSION}/SKILL.md.
  Two of three 2026-04-22 test windows hit this stale-path trap.
- New ## Resolved Entities block in render_comparison_multi shows
  per-entity handles/subs/github for debug visibility.

Bumps plugin.json to 3.0.12. 12 new tests; 1,175 total passing.

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/lib/planner.py

@@ -86,9 +86,16 @@ def plan_query(
     provider: providers.ReasoningClient | None,
     model: str | None,
     context: str = "",
+    internal_subrun: bool = False,
 ) -> schema.QueryPlan:
     """Create a query plan. Comparison queries with extractable entities use a
-    deterministic plan; other intents prefer the configured reasoning provider."""
+    deterministic plan; other intents prefer the configured reasoning provider.
+
+    internal_subrun: when True, suppress the LAW 7 "No --plan passed" stderr
+    warning. LAW 7 targets the hosting-reasoning-model path; competitor
+    fan-out sub-runs are engine-internal and the warning is a false positive
+    there. Default False preserves the warning on every user-facing invocation.
+    """
     if _should_force_deterministic_plan(topic):
         return _fallback_plan(
             topic,
@@ -122,16 +129,17 @@ def plan_query(
     # planner credentials - NOT a prerequisite the caller needs. If you are
     # the hosting reasoning model, YOU are the provider. LAW 7 / 2026-04-19
     # Hermes Agent Use Cases failure mode.
-    import sys
-    print(
-        "[Planner] No --plan passed. If you are the reasoning model hosting "
-        "this skill (Claude Code, Codex, Hermes, Gemini, or any agent runtime), "
-        "YOU ARE the planner: generate a JSON query plan yourself and pass it "
-        "via --plan. You do not need an API key or credentials; you ARE the "
-        "LLM. The deterministic fallback below is the headless/cron path only. "
-        "See LAW 7 in SKILL.md and Step 0.75 for the plan schema.",
-        file=sys.stderr,
-    )
+    if not internal_subrun:
+        import sys
+        print(
+            "[Planner] No --plan passed. If you are the reasoning model hosting "
+            "this skill (Claude Code, Codex, Hermes, Gemini, or any agent runtime), "
+            "YOU ARE the planner: generate a JSON query plan yourself and pass it "
+            "via --plan. You do not need an API key or credentials; you ARE the "
+            "LLM. The deterministic fallback below is the headless/cron path only. "
+            "See LAW 7 in SKILL.md and Step 0.75 for the plan schema.",
+            file=sys.stderr,
+        )
     return _fallback_plan(topic, available_sources, requested_sources, depth)