Fix all 6 confirmed findings from today's gap audit

Implements every confirmed finding from the workflow-based audit of
CURABIS Standard's agent model (7 finders + adversarial verification,
8 confirmed / 5 refuted):

1. Roemer/Florence phantom wiring - roemer.agent.md claimed Florence's
   heartbeat "may summon me when a ward smells of drift" with nothing in
   florence.agent.md or HEARTBEAT.md implementing it. Fixed by adding an
   explicit "Kald Roemer" instruction to HEARTBEAT.md ward 6 (agent
   visibility, his actual domain), mirroring ward 8's existing "Kald
   Weber" pattern, and correcting roemer.agent.md's own claim to match.

2. m365.agent.md's "Florence's morning brief pattern" was a one-way
   orphaned reference - a full 4-step pattern with nothing in
   florence.agent.md implementing it. Added it to florence.agent.md as
   an explicit on-demand capability, separate from the timestamp-gated
   Round protocol.

3. An Ergasterion "PROCEED WITH CHANGES" ruling had no way to be checked
   against the eventual diff - al-review's checklists never referenced
   it. Added ERGASTERION_RULING to the [CURABIS-STATE] vocabulary,
   wired Ergasterion to write it, and added a BLOCKing checklist item to
   al-review's Titus checklist that verifies required changes were
   actually implemented.

4. curabis-task-state-check.yml was headered "Deterministic enforcement
   (not LLM diligence)" but only checks checkbox order, only blocks
   anything if a human separately enabled branch protection (never
   verified anywhere), and doesn't exist at all for the PTE track.
   Corrected the header's claims and added Roemer station 14 to verify
   branch protection is actually configured.

5. Mode C's only safeguard against a support user reaching
   Curabis/QualityHub was a single manual eyeball check with no re-check
   ever. Strengthened Step 2 to cover team-inherited and org-default
   access paths, added an append-only support-user registry, and added
   Roemer station 15 to periodically re-verify every registered user
   against it.

6. Columbo's persona was presented as genuine autobiography with no
   disclosure of its fictional TV origin (Levinson & Link, Peter Falk),
   unlike Smiley which discloses explicitly. Added a reader-facing
   editorial note - never something Columbo says aloud, since unlike
   Smiley he actually performs the persona to customers.

custom/setup/curabis-standard.agent.md

@@ -875,7 +875,20 @@ Guide administratoren gennem:
 
 1. Invitér brugeren til organisationen som **member**
 2. Giv **Read**-rolle på de valgte repos — aldrig Write/Maintain/Admin
-3. Verificér at brugeren IKKE har adgang til `Curabis/QualityHub`
+3. Verificér at brugeren IKKE har adgang til `Curabis/QualityHub` — og tjek
+   BÅDE vejene dertil, ikke kun den ene: (a) ingen direkte collaborator-
+   invitation til QualityHub, OG (b) brugeren er ikke medlem af et team der
+   selv har adgang til QualityHub (team-nedarvet adgang omgår en ren
+   per-repo-check), OG (c) organisationens "Base permissions" (Org Settings →
+   Member privileges) ikke er sat bredere end "No permission"/"Read" på en
+   måde der stiltiende dækker private repos. 2026-08-03: et tidligere audit
+   fandt at trin 3 kun tjekkede (a) — en bruger kunne i praksis få adgang via
+   (b) eller (c) uden at noget fangede det.
+4. **Registrér onboardingen** i `custom/setup/support-users-onboarded.md`
+   (denne fil, append-only) — navn, GitHub-brugernavn, dato, tildelte repos.
+   Uden dette har intet senere trin (station 15 i Rømers runde) noget at
+   tjekke imod, og en glemt/forkert adgang forbliver usynlig for altid, ikke
+   kun til næste inspektion.
 
 ### Step 3 — Claude-miljø (browser, ikke VS Code)