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.

CONTRIBUTING.md

@@ -63,6 +63,8 @@ This repository follows PythonVibes best practices:
 - **Linting**: Flake8 (`flake8 .`)
 - **Type Checking**: MyPy (`mypy src/`)
 - **Testing**: Pytest (`pytest`)
+- **Pre-commit**: `pip install pre-commit && pre-commit install` (see `.pre-commit-config.yaml`)
+- **CI**: Gitea Actions workflow `.gitea/workflows/ci.yml` runs on push/PR to `main`
 
 ### Agent Development Standards
 For contributing new agents or improving existing ones:
@@ -114,6 +116,17 @@ We welcome various types of contributions:
 - **Testing**: New tests, test improvements, bug reports
 - **Performance**: Optimization improvements and measurements
 
+## Feedback
+
+We welcome bugs, feature ideas, and adoption experience reports.
+
+- **CLI:** `kaizen-agentic feedback` — lists channels and issue templates
+- **Guide:** [docs/FEEDBACK.md](docs/FEEDBACK.md)
+- **Templates:** `.gitea/ISSUE_TEMPLATE/` (bug, feature, general feedback)
+
+For cross-repo coordination between custodian agents, use State Hub messages
+(`POST /messages/`) — see session protocol in `.claude/rules/session-protocol.md`.
+
 ## Issue Reporting
 
 When reporting bugs, please include: