feat(web): Agent Platform Port — Paperclip behind a single import seam (R2, G12, #111)

יוצר web/agent_platform_port.py כמודול היחיד שמייבא web.paperclip_client/paperclip_api.
app.py מייבא כעת אך-ורק מה-Port — 0 imports ישירים של paperclip_* (היפוך-תלות פנימה,
Ports & Adapters / Dependency Rule). החלפת-הפלטפורמה = מימוש-מחדש של מודול אחד.

שתי שכבות ב-Port: (א) side-effects של מחזור-חיים נחשפים גם בשם-דומיין
(archive_case_project/restore/create/notify_case_status — אירועי-הדומיין המומלצים
לקוד חדש); (ב) פעולות issue/interaction/comment/agent — re-export בשם pc_* (קריאות
API, לא אירועים). מעבר מלא לפעלי-דומיין = follow-up; ה-import seam (החלק הניתן-לאכיפה
ב-G12) מוחזק בכל מקרה.

שינוי import-only באתרי-הקריאה — אפס שינוי-התנהגות, regression מינימלי.

אימות: app.py 0 imports ישירים; py_compile OK; כל 23 הסמלים נפתרים מה-Port;
domain-aliases identity-wired; test_paperclip_access_guard 5 passed.

Invariants: G12 (שער-הפלטפורמה — seam יחיד), G2 (מקור-אמת יחיד למגע-פלטפורמה).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/app.py

@@ -47,28 +47,32 @@ from web.mcp_env_catalog import (
     normalize_for_compare,
 )
 from web.progress_store import ProgressStore
-from web.paperclip_api import emit_case_status_webhook, pc_request, require_paperclip_db_url
-from web.paperclip_client import (
-    COMPANIES as PAPERCLIP_COMPANIES,
-    accept_interaction as pc_accept_interaction,
-    archive_project as pc_archive_project,
-    create_project as pc_create_project,
-    create_workflow_issue as pc_create_workflow_issue,
-    get_agents_for_case as pc_get_agents_for_case,
-    get_agents_for_company as pc_get_agents,
-    get_case_issues as pc_get_case_issues,
-    get_issue_comments as pc_get_issue_comments,
-    get_issue_interactions as pc_get_issue_interactions,
+# Agent platform access goes through the Platform Port ONLY (INV-G12 / X15) —
+# app.py never imports web.paperclip_client / web.paperclip_api directly.
+from web.agent_platform_port import (
+    PAPERCLIP_COMPANIES,
+    emit_case_status_webhook,
     get_project_url,
-    post_comment as pc_post_comment,
-    reject_interaction as pc_reject_interaction,
-    respond_to_interaction as pc_respond_to_interaction,
-    restore_project as pc_restore_project,
-    wake_analyst_for_appraiser_facts as pc_wake_analyst_for_appraiser_facts,
-    wake_ceo_agent as pc_wake_ceo,
-    wake_ceo_for_feedback_fold as pc_wake_ceo_for_feedback_fold,
-    wake_curator_for_final as pc_wake_curator_for_final,
-    wake_for_precedent_extraction as pc_wake_for_precedent_extraction,
+    pc_accept_interaction,
+    pc_archive_project,
+    pc_create_project,
+    pc_create_workflow_issue,
+    pc_get_agents,
+    pc_get_agents_for_case,
+    pc_get_case_issues,
+    pc_get_issue_comments,
+    pc_get_issue_interactions,
+    pc_post_comment,
+    pc_reject_interaction,
+    pc_request,
+    pc_respond_to_interaction,
+    pc_restore_project,
+    pc_wake_analyst_for_appraiser_facts,
+    pc_wake_ceo,
+    pc_wake_ceo_for_feedback_fold,
+    pc_wake_curator_for_final,
+    pc_wake_for_precedent_extraction,
+    require_paperclip_db_url,
 )