feat: interface admin regles, refactoring viewer, README, pyproject.toml

- Nouveau module rules_manager.py : CRUD YAML pour les regles metier
- Nouveau blueprint bp_rules.py + template admin_rules.html :
  interface web pour activer/desactiver/ajouter/supprimer des regles
- Extraction helpers.py depuis app.py (filtres Jinja2, statistiques,
  scan dossiers, status systeme) — app.py passe de 1585 a 482 lignes
- Suppression backward-compat re-exports dans cim10_extractor et
  cpam_response (imports corriges dans les tests)
- README.md : architecture, modules, installation, utilisation
- pyproject.toml : dependencies completes, config ruff, pytest, coverage

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/test_cpam_response.py

@@ -19,28 +19,32 @@ from src.config import (
     Traitement,
 )
 from src.control.cpam_response import (
-    _assess_dossier_strength,
-    _build_bio_confrontation,
-    _build_bio_summary,
     _build_correction_prompt,
     _build_cpam_prompt,
     _build_tagged_context,
-    _BIO_THRESHOLDS,
-    _check_das_bio_coherence,
     _extraction_pass,
     _format_response,
-    _fuzzy_match_ref,
-    _get_cim10_definitions,
-    _get_code_label,
-    _sanitize_unauthorized_codes,
     _search_rag_for_control,
-    _validate_adversarial,
     _validate_codes_in_response,
     _validate_grounding,
     _validate_references,
-    _assess_quality_tier,
     generate_cpam_response,
 )
+from src.control.cpam_context import (
+    _assess_dossier_strength,
+    _build_bio_confrontation,
+    _build_bio_summary,
+    _BIO_THRESHOLDS,
+    _check_das_bio_coherence,
+    _get_cim10_definitions,
+    _get_code_label,
+)
+from src.control.cpam_validation import (
+    _assess_quality_tier,
+    _fuzzy_match_ref,
+    _sanitize_unauthorized_codes,
+    _validate_adversarial,
+)
 
 
 def _make_dossier() -> DossierMedical: