chore(p0): drop never-enabled hunter tools, test-only functions and receiver delivery

Off every active line (PATHFINDER-2026-10-13/03-unified-proposal.md, cuts).
Deleted: the four hunter tools no caller enables (read_definition,
entry_points, flows, obligations) with their schemas and dispatch, the dead
mapping branch of find_refs; 20 functions whose only caller was one test
(mapping task records, compute_ranking_metrics, build_quick_hunter_prompt,
validate_evidence_transition, should_fuse, harness processors,
rank_targets_with_model, model/report slice rendering, taxonomy
hierarchical/related, config_value.verdict, taint.verdict, roles.load_roles,
features.language_of and build_for_scan, folds.leave_one_*,
features.recorded_case, search BatchExecutor and the three __main__ shims,
delivery.put_input); the receiver delivery mode of the plane. push_inputs.py
moved to benchmarks/push. memory.purge stays: the live-S3 test cleanup uses
it. Net: 2,730 lines deleted, 207 added. 473 targeted tests passed; 3,282
tests collect. breadth.toml records the removals.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

benchmarks/push/measure.py

@@ -13,10 +13,10 @@ import time
 from dataclasses import replace
 from pathlib import Path
 
+from benchmarks.push.push_inputs import validate_manifest
 from openultrasast.model.contracts import QuestionIdentity
 from openultrasast.model.scan import ScanBudget
 from openultrasast.push.runner import _provenance
-from openultrasast.push_inputs import validate_manifest
 from openultrasast.push_scoring import freeze_profile, score
 from openultrasast.repos import checkout_path, load_repo_recipe
 
@@ -314,7 +314,7 @@ def main() -> int:
         "reason": "Qualification evidence run; independent eligibility and joint quality/warm-latency gates remain unmet.",
         "selection": args.selection,
         "analysis_deadline_seconds": args.deadline,
-        "recorded_cases": len(run["records"]),
+        "case_count": len(run["records"]),
         "declared_population": len(manifest["cases"]),
         "core_unchanged": True,
         "adapter_changes": [],