feat(bridge): remote-access obligation cut (CRA Annex I) — 18 obligations

- obligations/cra_remote_access.json: 18 (5 LEGAL_MINIMUM outcomes + 13 BEST_PRACTICE),
  15 Beziehungen. Two-stage clustering 445->209 micro->27 review-units -> Opus-Synthese.
  Synthese vergab 14 LM -> key-free re-tier nach Auth-Regel (Mechanismen MFA/Session/VPN/
  insecure-protocol/OT/Wartungs-Governance/temp/data-export/component -> BEST_PRACTICE +
  supports-Kante zur Eltern-LM). out_of_scope M5/M11 = physische Maschinen-Fernsteuerung
  (MaschinenVO 2023/1230). Anker approximativ (siehe curation.anchor_quality).
- obligation_join_keys.json: 66 -> 84 (remote_access 18).
- precluster.py: remote_access-Scope.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

scripts/obligation_discovery/precluster.py

@@ -22,6 +22,10 @@ SCOPES = {
     "logging": ["%logging%", "%protokollierung%", "%audit-log%", "%audit-trail%",
                 "%ereignisprotokoll%", "%sicherheitsprotokoll%", "%audit-protokoll%",
                 "%log-management%", "%sicherheitsereignis%protokoll%", "%audit-trail%"],
+    "remote_access": ["%fernwartung%", "%fernzugriff%", "%fernzugang%", "%fernwartungs%",
+                      "%remote access%", "%remote maintenance%", "%remote management%",
+                      "%remote-wartung%", "%remote-zugriff%", "%remote-zugang%",
+                      "%sichere fernwartung%", "%fernsteuerung%"],
 }