WP-0001: feedback channels, CI, pre-commit, telemetry docs

Add kaizen-agentic feedback CLI, Gitea issue templates, CI workflow,
pre-commit hooks, FEEDBACK/TELEMETRY docs, and cross-platform path tests.
Improve CLI registry error messages; remove agents_backup scaffolding.
Apply black formatting across src/tests for CI consistency.

State Hub message sent to agentic-resources for Helix correlation doc link.

tests/test_optimization_metrics.py

@@ -85,7 +85,9 @@ class TestOptimizationFromMetricsStore:
         store = MetricsStore(project_dir, "coach")
         _seed_executions(store, 4)
 
-        report = OptimizationLoop.from_metrics_store(store).get_optimization_report_json()
+        report = OptimizationLoop.from_metrics_store(
+            store
+        ).get_optimization_report_json()
         json.dumps(report)
 
 
@@ -130,4 +132,7 @@ class TestMetricsOptimizeCli:
         optimizer = OptimizerStore(project_dir)
         assert optimizer.analysis_path.exists()
         assert optimizer.recommendations_path.exists()
-        assert '"type": "reliability"' in result.output or '"type": "quality"' in result.output
+        assert (
+            '"type": "reliability"' in result.output
+            or '"type": "quality"' in result.output
+        )