feat: show external evidence status in quality summary

[wlsdks]

Summary

• Add an External evidence status section to human prompt-coach quality-evidence output.
• Show scheduled patrol status, workflow, cron, next expected schedule UTC, and native dialog approved-run requirement.
• Keep JSON evidence shape and blocker logic unchanged.

Effect Check

• Operators can now use the default CLI summary to decide when to re-check external blockers.
• scheduled_ui_patrol and native_dialog_approved_dogfood remain blockers.
• The output stays raw-free and does not include local paths.

Verification

• RED: corepack pnpm vitest run src/cli/commands/quality-evidence.test.ts --testNamePattern "prints" failed before the external status section existed.
• GREEN: same focused test passed after implementation.
• corepack pnpm test
• corepack pnpm lint
• corepack pnpm build
• node dist/cli/index.js quality-evidence | sed -n '18,45p'
• corepack pnpm pack:dry-run
• git diff --check

[wlsdks]

Local gate after removing the general CI workflow:\n\n- PASS: corepack pnpm vitest run src/cli/commands/quality-evidence.test.ts src/packaging/plugin-files.test.ts --testNamePattern "prints|general test CI|release stability|PromptLane"\n- PASS: corepack pnpm test\n- PASS: corepack pnpm lint\n- PASS: corepack pnpm build\n- PASS: corepack pnpm pack:dry-run\n- PASS: git diff --check\n\nGeneral PR/main test CI was removed by maintainer request. .github/workflows/ui-patrol.yml remains because it is scheduled operational evidence, not the generic CI gate.