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_path_compat.py

@@ -0,0 +1,19 @@
+"""Cross-platform path handling smoke tests (WP-0001 T07)."""
+
+from __future__ import annotations
+
+from pathlib import Path, PureWindowsPath
+
+from kaizen_agentic.metrics import MetricsStore
+
+
+def test_metrics_store_accepts_string_project_root(tmp_path: Path):
+    store = MetricsStore(str(tmp_path), "coach")
+    store.append({"success": True}, idempotency_key="win-path-test")
+    assert store.executions_path.exists()
+
+
+def test_metrics_paths_use_forward_join_semantics(tmp_path: Path):
+    store = MetricsStore(tmp_path, "tdd-workflow")
+    suffix = PureWindowsPath(".kaizen/metrics/tdd-workflow/executions.jsonl")
+    assert store.executions_path.as_posix().endswith(suffix.as_posix())