feat(use-case-controls): Adressat-Achse — out-of-scope advisory + additiver GOV-Tag

2-Pass-Haiku-Klassifikation (konservativ + Re-Confirm jeder Nicht-unternehmen-
Einstufung) der Review-Tier-Atome: wer muss die Pflicht erfuellen?

- Migration 155: atom_classification.addressee (unternehmen/oeffentliche_stelle/
  aufsichtsbefugnis/staat_eu/dritter/meta), additiv, kein CHECK. [migration-approved]
- Service: addressee + applicable + is_gov pro Control; include_out_of_scope-Param
  (Default false -> out-of-scope advisory ausgeblendet, NIE geloescht); out_of_scope_count.
  Pure Helper addressee_applicable/addressee_is_gov (+ Tests).
- Route: optionaler include_out_of_scope-Query (contract-safe, additiv).
- Frontend: GOV-Chip (additiv) + "kein Kunden-Pruefaspekt"-Chip + 1-Klick-Toggle
  zum Einblenden der out-of-scope-Atome.

Daten: 40.859 Adressat-Tags auf macmini geladen (81% applicable, 19% advisory,
3.146 GOV). Konservativ: NULL/Unklar = applicable.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend-compliance/compliance/api/use_case_controls_routes.py

@@ -57,6 +57,11 @@ async def controls_for_use_case(
         description="atom-grain: 'core'=nur validierte Kern-Pflichten (Default), "
         "'all'=alle inkl. 'zur Prüfung'-Stufe",
     ),
+    include_out_of_scope: bool = Query(
+        False,
+        description="atom-grain: out-of-scope-Adressaten (Aufsichtsbefugnis/"
+        "Mitgliedstaat/Dritter/meta) einblenden (Default: advisory ausgeblendet)",
+    ),
     limit: int = Query(50, ge=1, le=200),
     offset: int = Query(0, ge=0),
     svc: UseCaseControlsService = Depends(get_use_case_controls_service),
@@ -64,4 +69,7 @@ async def controls_for_use_case(
     """Controls for a topic. Atom-grain (Haiku: relevant + sub_topic) wenn vorhanden,
     sonst master-grain Seed."""
     with translate_domain_errors():
-        return svc.controls_for_use_case(use_case, primary_only, limit, offset, sub_topic, tier)
+        return svc.controls_for_use_case(
+            use_case, primary_only, limit, offset, sub_topic, tier,
+            include_out_of_scope,
+        )