Perform code optimization and document cleanup (#1)

## Summary
- add repository-wide quality tooling and verification scaffolding, including CI workflows, pnpm workspace setup, ESLint/Prettier/markdown checks, and generated-output verification helpers
- reorganize skill sources and generation flow by introducing canonical `_source` variants, generator/manifests, reusable helper abstractions, and shared web-automation/browser utilities
- clean up and expand documentation so the root README flows into docs and skill docs, with clearer development, reviewer, installer, and workflow guidance

## Notable changes
- docs flow and consistency cleanup across `README.md`, `docs/README.md`, and related docs
- new scripts for `check`, docs verification, generated-file verification, shell portability, and safe directory replacement
- refactors in Atlassian and web-automation skill runtimes to reduce duplication and centralize reusable code
- changelog, development documentation, and CI surface updates

## Test Plan
- [ ] `pnpm run check`
- [ ] review generated/manifests and skill sync outputs
- [ ] smoke-check docs flow from `README.md` to `docs/README.md` to skill docs

## Notes
- this branch currently includes tracked `skills/web-automation/shared/node_modules` content that should be reviewed carefully as potentially noisy/accidental committed artifacts

Co-authored-by: Stefano Fiorini <stefano.fiorini@firsthorizon.com>
Reviewed-on: #1

skills/create-plan/pi/templates/story-tracker.md

@@ -1,6 +1,8 @@
+<!-- ⚠️ GENERATED FILE – do not edit directly. Edit the canonical source in skills/create-plan/_source/pi/ and run `pnpm run sync:pi`. -->
 # Story Tracker: [Plan Title]
 
 ## Progress Summary
+
 - **Current Milestone:** M1
 - **Stories Complete:** 0/N
 - **Milestones Approved:** 0/M
@@ -46,15 +48,18 @@
 ## Update Instructions (MANDATORY)
 
 Before starting any story:
+
 1. Mark story as `in-dev`
 2. Update "Last Updated"
 
 After completing any story:
+
 1. Mark story as `completed`
 2. Add local commit hash to Notes
 3. Update "Stories Complete" and "Last Updated"
 
 At milestone boundary:
+
 1. Run lint/typecheck/tests for changed files
 2. Commit (no push)
 3. Request feedback
@@ -63,4 +68,5 @@ At milestone boundary:
 6. Continue only after approval
 
 After all milestones approved:
+
 - Ask permission to push and then mark plan completed.