chore(cleanup): tree hygiene + verification-token typo rename

[abdout]

Severity

P2 — Tree hygiene

Context

Audit flagged:

• `.idea/` partially tracked (5 IDE-config files) — should be gitignored
• `.playwright-mcp/` not ignored (61 entries from prior MCP test runs would land in commits)
• `fix-dev-server.bat` and `start-dev.ps1` — Windows-only crutches that mask a Turbopack/AV/OneDrive watcher issue rather than fixing it; not portable to macOS/Linux contributors
• `src/components/auth/verification/verificiation-token.ts` — typo in filename, with 2 callers

Fix

• `.gitignore`: add `.idea/` and `.playwright-mcp/`
• `git rm --cached` the 5 tracked `.idea/*` files
• `git rm` the two Windows scripts
• `git mv verificiation-token.ts → verification-token.ts` and update the 2 importers (`auth/tokens.ts:6`, `auth/verification/action.ts:4`)

Out of scope

• The audit also flagged "two auth.ts files" as a possible dedup. Investigation showed they have different roles:
  • `src/auth.ts` — NextAuth instance (handlers, auth, signIn, signOut)
  • `src/components/auth/auth.ts` — slim wrapper with `currentUser` + `currentRole` helpers using the NextAuth instance
    Not a duplicate. Both kept as-is.

Acceptance criteria

• `.idea/` and `.playwright-mcp/` ignored
• No `fix-dev-server.bat` or `start-dev.ps1` in tree
• No `verificiation` (typo) anywhere; `verification-token.ts` exists and resolves
• `pnpm tsc --noEmit` shows no new errors

Reference

Plan: PR-18.