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/agent_platform_port.py

@@ -0,0 +1,96 @@
+"""Agent Platform Port (INV-G12 / docs/spec/X15) — the single seam to the platform.
+
+Paperclip is the *agent platform*: a replaceable shell, not the core. This module
+is the ONLY place in the web layer that may import the Paperclip client
+(``web.paperclip_client`` / ``web.paperclip_api``). ``web/app.py`` — and any future
+web code — imports the platform operations from HERE, never from the Paperclip
+modules directly. So the dependency points inward (Ports & Adapters / the
+Dependency Rule, Cockburn / Martin): swapping the platform means re-implementing
+this one module, not touching app.py.
+
+Enforced by the leak-guard (X15 §4 / R4): no file outside this Port imports
+``paperclip_client`` / ``paperclip_api``.
+
+Two tiers:
+  • **Lifecycle side-effects** — archive / restore / create a case's project, and
+    the case-status notification — are also exposed under domain names
+    (``archive_case_project`` …). These are the genuine domain events the app
+    emits over a case's lifecycle; prefer them in new code.
+  • **Issue / interaction / comment / agent operations** are re-exported under
+    their existing ``pc_*`` names: they are request/response API calls, not
+    events, so a faithful facade re-export — rather than an artificial "event" —
+    is the honest treatment. Migrating these to domain verbs is a follow-up that
+    can happen as call sites are touched; the import seam (the enforceable part
+    of G12) holds regardless.
+"""
+from __future__ import annotations
+
+# ── the Paperclip shell — imported ONLY here (the Port is the single seam) ──
+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,
+    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,
+)
+
+# ── domain-named lifecycle aliases (preferred for new call sites) ───────────
+archive_case_project = pc_archive_project
+restore_case_project = pc_restore_project
+create_case_project = pc_create_project
+notify_case_status = emit_case_status_webhook
+
+__all__ = [
+    # platform infrastructure
+    "PAPERCLIP_COMPANIES",
+    "pc_request",
+    "require_paperclip_db_url",
+    "get_project_url",
+    # lifecycle — domain names (preferred) + legacy aliases
+    "archive_case_project",
+    "restore_case_project",
+    "create_case_project",
+    "notify_case_status",
+    "emit_case_status_webhook",
+    "pc_archive_project",
+    "pc_restore_project",
+    "pc_create_project",
+    # issues / workflow
+    "pc_create_workflow_issue",
+    "pc_get_case_issues",
+    # agents / wakeups
+    "pc_get_agents_for_case",
+    "pc_get_agents",
+    "pc_wake_ceo",
+    "pc_wake_ceo_for_feedback_fold",
+    "pc_wake_curator_for_final",
+    "pc_wake_for_precedent_extraction",
+    "pc_wake_analyst_for_appraiser_facts",
+    # comments / interactions
+    "pc_post_comment",
+    "pc_get_issue_comments",
+    "pc_get_issue_interactions",
+    "pc_accept_interaction",
+    "pc_reject_interaction",
+    "pc_respond_to_interaction",
+]

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,
 )