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

docs/WEB-AUTOMATION.md

@@ -89,7 +89,7 @@ Recommended full Pi package install:
 Manual single-skill Pi install from the package mirror:
 
 ```bash
-./scripts/sync-pi-package-skills.sh
+pnpm run sync:pi
 mkdir -p .pi/skills/web-automation
 cp -R pi-package/skills/web-automation/* .pi/skills/web-automation/
 cd .pi/skills/web-automation/scripts
@@ -112,7 +112,8 @@ pnpm approve-builds
 pnpm rebuild better-sqlite3 esbuild
 ```
 
-This repo intentionally treats `cloakbrowser` as a refreshable dependency: update to the latest available compatible release, then regenerate the lockfile from that resolved set.
+This repo intentionally treats `cloakbrowser` as a refreshable dependency: update to the latest
+available compatible release, then regenerate the lockfile from that resolved set.
 
 ## Verify Installation & Wiring
 
@@ -129,7 +130,8 @@ Expected checks:
 
 If the check fails, stop and return:
 
-"Missing dependency/config: web-automation requires `cloakbrowser` and `playwright-core` with CloakBrowser-based scripts. Run setup in this skill, then retry."
+"Missing dependency/config: web-automation requires `cloakbrowser` and `playwright-core` with
+CloakBrowser-based scripts. Run setup in this skill, then retry."
 
 If runtime later fails with native-binding issues, run: