"prove your email first" and "verify your email first" live in one module, read by every door that holds back an unverified account #5646

For: An unverified account held back reads the same from every door (page, API, MCP, terminal) because it is said from one place. Today each sentence below is typed out separately in src/http/api.ts, src/http/mcp.ts, src/http/respond.ts, src/actions/tell.ts, src/actions/verify.ts.

Done:

• [ ] src/actions/verify_words.ts (with #5558's sentences if it has landed) exports these sentences (new, or the module that already owns that concept; say which in the pull):

- "prove your email first" - "verify your email first"

• [ ] Every file named imports them, and grep -rn for each sentence under src/ finds only the module.
• [ ] Pages, screens and answers are byte-for-byte unchanged: every existing test passes as it is.
• [ ] A new test/verify-gate-words.test.ts asserts each file named no longer contains the literal (read as text), and fails if a copy is typed back.
• [ ] Before pushing, run test/verify-gate-words.test.ts, the tests of the files you touched, bun x tsc --noEmit and, if src/web changed, bun scripts/design-lint.ts. A red test elsewhere that main also has is named in the pull, not a reason to stop.

Files: src/actions/verify_words.ts (with #5558's sentences if it has landed), src/http/api.ts, src/http/mcp.ts, src/http/respond.ts, src/actions/tell.ts, src/actions/verify.ts, test/verify-gate-words.test.ts. Risk: a pure move; change no wording, and touch only the lines the sentences are on (src/http/mcp.ts and src/http/api.ts are edited in parallel).