fix(qa): mark the dashboard's placeholder scores as simulated

[sergiobuilds]

/api/personas/:id/qa-simulation returns twenty followers, five dimensions each, a total and a TOP 5 ranking. It reads as an evaluation. It is deterministicScore, a string hash over persona, follower, dimension, and the content name — the draft is never opened.

The CLI path is the opposite: virtual-follower runs a real LLM evaluation and even forces a Read on the saved report to confirm it exists. Two things named "QA score", one real and one a hash, and nothing in the type, the response, or the UI separates them.

Measured

A. same filename, content replaced wholesale
   garbage draft    -> f14:413  f15:394  f03:385  f09:361 ...
   polished draft   -> f14:413  f15:394  f03:385  f09:361 ...
   byte-identical

B. identical content, different filename
   alpha.md  -> top1 f14 / 413
   beta.md   -> top1 f18 / 387

C. filename that exists nowhere
   HTTP 200, {hook:64, empathy:53, share:90, cta:95, platform_fit:70}

Rewriting the draft moves nothing. Renaming it moves everything. That is the whole finding.

(One correction to the public write-up going around: the endpoint does 404 when a persona has none of its three files, so it is the content name that can be fictional, not the persona.)

After

The scores stay — the layout needs something to render, and a stable placeholder is better than an empty grid. What changes is that they stop claiming to be an evaluation:

• the response carries simulated: true, scoring: "deterministic-hash", and a scoringNote naming /qa as the real path
• the QA Simulation page renders a banner above the board when simulated is set
• deterministicScore carries a comment saying it never opens the draft, so the next reader does not have to rediscover it

bun run build passes. tsc --noEmit reports the same errors as ralphthon, file for file (31 in PersonaDetail.tsx, 3 in VirtualFollower.tsx, all pre-existing) — this branch adds none.

Replacing the hash with a real evaluation is the actual fix; this is the honest label until then.