feat(controls): B3 — categorize the rest of needs_tooling (architectural + RBAC)

Closes out B's coverage of the 16 needs_tooling CRA controls:

- cra-ai-2,3,4,5 (minimal attack surface, secure architecture, least-privilege,
  tamper protection) are design properties, not local code patterns -> marked
  not_code_checkable (out of static-scan scope) with reviewer notes.
- cra-ai-12 (RBAC) is surface-checkable (authorization points) -> added to the
  grounded surface pass; note points to the gated grounded mechanism.

Final CRA coverage: covered 13 | needs_tooling 8 (all grounded-covered, gated) |
not_code_checkable 19. The 16 needs_tooling now fully categorized:
4 custom-semgrep (B1) + 8 grounded surface (B2/B3, gated) + 4 architectural (B3).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

control-map/data/cra_control_map.json

@@ -25,29 +25,29 @@
       "control": "cra-ai-2",
       "title": "Minimale Angriffsflaeche",
       "scans": [],
-      "note": "code-checkable but no off-the-shelf tool digs it out — author a detector (custom semgrep rule / check)",
-      "status": "needs_tooling"
+      "note": "design property (minimal attack surface) — not derivable from local code patterns; architecture/threat-model review",
+      "status": "not_code_checkable"
     },
     {
       "control": "cra-ai-3",
       "title": "Sichere Systemarchitektur",
       "scans": [],
-      "note": "code-checkable but no off-the-shelf tool digs it out — author a detector (custom semgrep rule / check)",
-      "status": "needs_tooling"
+      "note": "design property (secure system architecture) — architecture review, not statically code-checkable",
+      "status": "not_code_checkable"
     },
     {
       "control": "cra-ai-4",
       "title": "Least-Privilege-Prinzip",
       "scans": [],
-      "note": "code-checkable but no off-the-shelf tool digs it out — author a detector (custom semgrep rule / check)",
-      "status": "needs_tooling"
+      "note": "design property (least-privilege) — deployment/IAM & architecture review, not a local code pattern",
+      "status": "not_code_checkable"
     },
     {
       "control": "cra-ai-5",
       "title": "Manipulationsschutz",
       "scans": [],
-      "note": "code-checkable but no off-the-shelf tool digs it out — author a detector (custom semgrep rule / check)",
-      "status": "needs_tooling"
+      "note": "design property (tamper protection) — hardware/runtime & operational control, not statically code-checkable",
+      "status": "not_code_checkable"
     },
     {
       "control": "cra-ai-6",
@@ -146,7 +146,7 @@
       "control": "cra-ai-12",
       "title": "Rollenbasierte Autorisierung",
       "scans": [],
-      "note": "code-checkable but no off-the-shelf tool digs it out — author a detector (custom semgrep rule / check)",
+      "note": "absence-based — no syntactic pattern; covered by the grounded surface check (retrieve surface + LLM judge), gated (BREAKPILOT_GROUNDED_CHECKS) pending live tuning",
       "status": "needs_tooling"
     },
     {