docs(web): add getting-started README for frontier/web

[paanSinghCoder]

What

Adds a getting-started README at web/README.md for the Frontier web monorepo, and links to it from the root README.

Details

web/README.md covers:

• What's inside — apps/admin, apps/client-demo, the @raystack/frontier SDK, and shared tools/* configs
• Prerequisites — Node >= 22, pnpm >= 10.19.0
• Getting started — pnpm install, pnpm dev, Turbo filters, and per-package commands
• Backend config — the .env files each app needs, with localhost values (REST on :8000, ConnectRPC on :8002)
• Common scripts and Makefile shortcuts

Root README.md now links to it under a new Web subsection in Usage.

Docs only — no code changes.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
frontier	Ready	Preview, Comment	Jun 3, 2026 11:41am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 6eaca45c-35aa-4607-9181-e2fc1ed4dcc7

📥 Commits

Reviewing files that changed from the base of the PR and between c2f9a2c and e02d197.

📒 Files selected for processing (2)

• README.md
• web/README.md

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📝 Walkthrough

Summary by CodeRabbit

• Documentation
  • Updated main README with web frontend information and reference to detailed documentation.
  • Added comprehensive web frontend monorepo documentation covering setup, development commands, and available scripts.

Walkthrough

Root README is updated to point users to web frontend documentation, and web/README.md is replaced with comprehensive setup instructions, workspace structure details, development workflows, environment configuration, and available scripts for the web frontend monorepo.

Changes

Web Frontend Documentation

Layer / File(s)

Summary

Web frontend documentation and navigation README.md, web/README.md

Root README adds a "Web" subsection under Usage directing readers to the web frontend workspace at web/README.md. The web/README.md file is entirely replaced with documentation covering pnpm/Turborepo workspace structure, included packages (admin app, client demo, SDK, shared tooling), Node.js and pnpm version prerequisites, getting started and development commands, per-app .env backend configuration, common scripts and Makefile shortcuts, and links to additional documentation and SDK resources.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coveralls]

Coverage Report for CI Build 26882374285

Coverage remained the same at 43.153%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	38000
Covered Lines:	16398
Line Coverage:	43.15%
Coverage Strength:	12.09 hits per line

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💛 - Coveralls