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.

.gitea/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest an enhancement for kaizen-agentic
+title: "[feature] "
+labels: enhancement
+---
+
+## Problem or opportunity
+
+<!-- What pain point does this address? -->
+
+## Proposed solution
+
+## Alternatives considered
+
+## Scope
+
+- [ ] CLI / framework (`src/kaizen_agentic/`)
+- [ ] Agent definitions (`agents/`)
+- [ ] Documentation / wiki
+- [ ] Ecosystem integration (activity-core, artifact-store, agentic-resources)
+
+## Additional context