Add TypeScript quality rule playbooks

[devnexus-automation]

Add concise agent guidance for recurring TypeScript quality findings.

Initial rules:

• Sonar typescript:S3776 cognitive complexity
• Sonar typescript:S5852 regex backtracking risk
• Sonar typescript:S4036 PATH trust

Acceptance:

• Guidance explains preferred fixes and when to defer.
• Playbooks are reusable by DevNexus agents.

[devnexus-automation]

Implemented locally as part of codex/dev-nexus-typescript/24-quality-snapshots at 6bf57af.

Scope:

• rule playbooks for typescript:S3776, typescript:S5852, and typescript:S4036
• references stored with the playbook entries
• README usage notes for quality snapshots and deltas

Verification: npm run check passed.

Not pushed yet.

[devnexus-automation]

Integrated into codex/dev-nexus-typescript/source-quality-audit and pushed via App remote. Head: 2fc9709. Verification: npm run check passed; TypeScript diagnostics 0; import cycles 0.

[devnexus-automation]

Quality integration follow-up: playbooks exist for typescript:S3776, typescript:S5852, and typescript:S4036, but keep this open until those playbooks are exposed in the agent workflow, not just library code. Acceptance should verify agents can discover the preferred fixes, defer conditions, and references while acting on snapshot or delta findings.

[devnexus-automation]

Implemented in PR #29: projects a typescript-quality-feedback skill with Sonar rule playbooks, advertises quality snapshot/delta MCP operations through plugin capabilities, and adds default worker guidance for touched-file quality deltas. Verification: focused Vitest suite, npm run check, git diff --check, TypeScript diagnostics MCP 0 diagnostics.