fix(phase_e+f): mail-send unreachable + cookie_coherence im html_blocks

KRITISCH: Mein vorheriger B19-Edit hatte send_email() versehentlich
in den _build_cookie_csv_extra-Helper geschoben (NACH dem return {}).
Mail wurde nie versendet (email_status=skipped war Folge — state[
"email_result"] nie gesetzt).

Fix:
  - send_email + state["email_result"]/site_name/domain/doc_count
    zurück in run_phase_e (BMW4 hat 1520 findings produziert aber
    keine Mail verschickt).
  - _build_cookie_csv_extra ist jetzt eine echte Modul-Funktion
    NACH run_phase_e.

Plus: phase_f_persist.response.html_blocks um "cookie_coherence"
ergänzt (B19-HTML-Block fehlte im API-Schema).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

backend-compliance/compliance/api/agent_check/_phase_e_email.py

@@ -83,6 +83,18 @@ def run_phase_e(state: dict) -> None:
         except Exception as e:
             logger.warning("audit-walk-zip build failed: %s", e)
 
+    email_result = send_email(
+        recipient=req.recipient,
+        subject=f"[COMPLIANCE-CHECK] {site_name} — {doc_count} Dokumente geprueft",
+        body_html=full_html,
+        attachments=evidence_attachments or None,
+    )
+
+    state["email_result"] = email_result
+    state["site_name"] = site_name
+    state["domain"] = domain
+    state["doc_count"] = doc_count
+
 
 def _build_cookie_csv_extra(state: dict, check_id: str) -> dict[str, bytes]:
     """B19 Step 4: cookies-full.csv ins Walk-ZIP. Returns {filename: bytes}."""
@@ -96,15 +108,3 @@ def _build_cookie_csv_extra(state: dict, check_id: str) -> dict[str, bytes]:
     except Exception as e:
         logger.warning("cookie-csv build failed: %s", e)
     return {}
-
-    email_result = send_email(
-        recipient=req.recipient,
-        subject=f"[COMPLIANCE-CHECK] {site_name} — {doc_count} Dokumente geprueft",
-        body_html=full_html,
-        attachments=evidence_attachments or None,
-    )
-
-    state["email_result"] = email_result
-    state["site_name"] = site_name
-    state["domain"] = domain
-    state["doc_count"] = doc_count

backend-compliance/compliance/api/agent_check/_phase_f_persist.py

@@ -89,6 +89,7 @@ def run_phase_f(state: dict) -> None:
             "vendor_consistency": state.get("vendor_consistency_html", ""),
             "ai_act": state.get("ai_act_html", ""),
             "impressum_agent": state.get("impressum_agent_html", ""),
+            "cookie_coherence": state.get("cookie_coherence_html", ""),
         },
     }