docs: add web automation consolidation plans

docs/plans/2026-03-10-web-automation-consolidation-design.md

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+# Web Automation Consolidation Design
+
+## Goal
+Consolidate `playwright-safe` into `web-automation` so the repo exposes a single web skill. Keep the proven one-shot extractor behavior, rename it to `extract.js`, and remove the separate `playwright-safe` skill and docs.
+
+## Architecture
+`web-automation` remains the only published skill. It will expose two capability bands under one skill: one-shot extraction via `scripts/extract.js`, and broader stateful automation via the existing `auth.ts`, `browse.ts`, `flow.ts`, and `scrape.ts` commands. The one-shot extractor will keep the current safe Playwright behavior: single URL, JSON output, bounded stealth/anti-bot handling, and no sandbox-disabling Chromium flags.
+
+## Migration
+- Copy the working extractor into `skills/web-automation/scripts/extract.js`
+- Update `skills/web-automation/SKILL.md` and `docs/web-automation.md` to describe both one-shot extraction and full automation
+- Remove `skills/playwright-safe/`
+- Remove `docs/playwright-safe.md`
+- Remove README/doc index references to `playwright-safe`
+
+## Verification
+- `node skills/web-automation/scripts/extract.js` -> JSON error for missing URL
+- `node skills/web-automation/scripts/extract.js ftp://example.com` -> JSON error for invalid scheme
+- `node skills/web-automation/scripts/extract.js https://example.com` -> valid JSON result with title/status
+- Repo text scan confirms no remaining published references directing users to `playwright-safe`
+- Commit, push, and clean up the worktree