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

pi-package/skills/web-automation/scripts/check-install.js

@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+// ⚠️ GENERATED FILE – do not edit directly. Edit the canonical source in skills/web-automation/shared/ and run `pnpm run sync:pi`.
 
 import fs from "node:fs";
 import path from "node:path";
@@ -18,11 +19,9 @@ async function main() {
   try {
     await import("cloakbrowser");
     await import("playwright-core");
-    await import("better-sqlite3");
-    await import("esbuild");
   } catch (error) {
     fail(
-      "Missing dependency/config: web-automation requires cloakbrowser, playwright-core, better-sqlite3, and esbuild.",
+      "Missing dependency/config: web-automation requires cloakbrowser and playwright-core.",
       error instanceof Error ? error.message : String(error)
     );
   }
@@ -34,7 +33,6 @@ async function main() {
   }
 
   process.stdout.write("OK: cloakbrowser + playwright-core installed\n");
-  process.stdout.write("OK: better-sqlite3 + esbuild installed\n");
   process.stdout.write("OK: CloakBrowser integration detected in browse.ts\n");
 }