docs: standardize project README

[montasim]

Summary

• present the 50+ tool collection by workflow rather than an incomplete feature dump
• clarify which tools stay in the browser and which contact servers, persist data, or reach third parties
• correct the clone command, Node/pnpm setup, Prisma commands, active environment-variable documentation, architecture, limitations, and deployment guidance
• add verified CI, live, MIT license, and SupportKori signals

Verification

• checked every relative README link, including .nvmrc, active configuration files, and LICENSE
• matched commands, tool registry, server routes, persistence model, workflow filename, and environment names against repository evidence
• verified the live app, CI workflow, CI badge, SupportKori, and license badge endpoints return HTTP 200
• ran Markdown structure checks and git diff --check

This is a README-only change, so project dependency installation and build execution were intentionally skipped.

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Project	Deployment	Actions	Updated (UTC)
devtools	Ready	Preview	Aug 4, 2026 5:12am

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