feat(pilot): Phase 6 — post-resolve templatize prompt + draft accept/reject

Closes the loop on the Phase 5 "Run now, templatize after resolve" path.
After a session resolves, drafts queued by the three-option dialog surface
as a modal that lets the engineer review the AI-proposed parameterization
and either save as a reusable team template or skip. A "don't ask again"
toggle writes to account_settings.preferences so the next resolve won't
pop the modal.

Backend:
- /api/v1/draft-templates:
  * GET — list account drafts (pending_only default true; pass false for
    audit view including accepted/rejected)
  * GET /{id} — single draft
  * POST /{id}/accept — promotes to a new script_templates row with
    source_session_id / source_user_id / source_ticket_ref populated
    (drives the Script Library "generated from CW #X · resolved by Y"
    provenance chip). Draft flips to status=accepted,
    promoted_template_id set, resolved_at stamped. 409 on re-accept /
    already-rejected. 400 on unknown category_id.
  * POST /{id}/reject — flips to status=rejected. 409 on re-reject.
- /api/v1/accounts/me/preferences (GET/PATCH) — thin wrapper over
  AccountSettings.get_setting/set_setting. PATCH merges keys into the
  JSONB column, preserving existing keys the client didn't touch.
  Used by the "Don't ask again for this team" checkbox
  (templatize_prompt_enabled=false) and, forward-looking, by
  cw_resolved_status_id / cw_escalated_status_id from Phase 4.
- 13 tests: list filter, accept with/without edited_body, provenance
  copy-through, reject, 409 on re-accept / re-reject, 400 on unknown
  category, prefs round-trip with merge semantics.

Frontend:
- src/components/pilot/script/TemplatizePrompt.tsx — modal showing the
  drafted script with proposed parameters in the Phase 5
  ParameterizationPreview, editable name/category/description, an
  individual-parameter remove button, and the "don't ask again" opt-out.
  Accept posts to /draft-templates/{id}/accept + optionally PATCHes
  preferences. Skip posts /reject.
- src/api/draftTemplates.ts — typed client plus accountPreferencesApi.
- AssistantChatPage: after a successful Resolve (external OR local),
  fetches preferences + pending drafts for the session and queues the
  modal one draft at a time. Escalate does not trigger this flow.
- Sidebar: Scripts nav shows the pending-draft count as a badge. Fetched
  independently of the main sidebar stats so endpoint flakes don't
  break the rest of the sidebar.

Verified live 2026-04-22: seed two drafts → GET sees both pending →
accept draft A (template created, provenance CW #99123 populated) →
reject draft B → pending count drops → PATCH opt-out → GET confirms
persistence.

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

frontend/src/pages/AssistantChatPage.tsx

@@ -18,6 +18,12 @@ import { SuggestedFix } from '@/components/pilot/sections/SuggestedFix'
 import { ResolutionNotePreview as ResolutionNotePreviewPopover } from '@/components/pilot/ResolutionNotePreview'
 import { TemplateMatchPanel } from '@/components/pilot/script/TemplateMatchPanel'
 import { NoTemplateDialog } from '@/components/pilot/script/NoTemplateDialog'
+import { TemplatizePrompt } from '@/components/pilot/script/TemplatizePrompt'
+import {
+  draftTemplatesApi,
+  accountPreferencesApi,
+  type DraftTemplate,
+} from '@/api/draftTemplates'
 import { PILOT_INLINE_SCRIPT_EVENT } from '@/lib/pilotEvents'
 import { sessionFactsApi, type SessionFact } from '@/api/sessionFacts'
 import {
@@ -109,6 +115,11 @@ export default function AssistantChatPage() {
   // whether the active fix has a script_template_id.
   const [scriptPanelOpen, setScriptPanelOpen] = useState(false)
   const [scriptDecisionBusy, setScriptDecisionBusy] = useState(false)
+  // Phase 6: post-resolve "save as template?" queue. After Resolve succeeds
+  // we fetch pending drafts for this session and show the modal one at a
+  // time; the user accepts, rejects, or toggles "don't ask again", and we
+  // advance to the next pending draft.
+  const [templatizeQueue, setTemplatizeQueue] = useState<DraftTemplate[]>([])
   const [showOverflow, setShowOverflow] = useState(false)
   const toggleSidebarCollapse = () => {
     const next = !sidebarCollapsed
@@ -505,6 +516,27 @@ export default function AssistantChatPage() {
         toast.success('Session escalated locally (no PSA ticket linked)')
       }
       handleClosePreview()
+
+      // Phase 6: on a successful Resolve (either external or local), check
+      // for pending draft_templates rows created by the Phase 5 three-option
+      // dialog. Show the TemplatizePrompt modal iff:
+      //   - the account preference hasn't opted out
+      //   - the session has at least one pending draft
+      // Escalate doesn't trigger this flow — only resolution.
+      if (out.outcome === 'resolved' || out.outcome === 'resolved_local') {
+        try {
+          const prefs = await accountPreferencesApi.get()
+          if (prefs.preferences.templatize_prompt_enabled === false) return
+          const drafts = await draftTemplatesApi.list(true)
+          const forThisSession = drafts.filter(
+            (d) => d.source_session_id === activeChatId,
+          )
+          if (forThisSession.length > 0) setTemplatizeQueue(forThisSession)
+        } catch {
+          // Soft-fail: the Resolve itself succeeded. A missing preference
+          // or list fetch is not worth blocking the success toast.
+        }
+      }
     } catch (err: unknown) {
       console.error('[AssistantChat] confirm post failed:', err)
       const status = (err as { response?: { status?: number }; response?: { data?: { detail?: string } } })?.response?.status
@@ -1431,6 +1463,16 @@ export default function AssistantChatPage() {
           context="status"
         />
       )}
+
+      {/* Phase 6: post-resolve "save as team template?" modal. Shown one draft
+          at a time; onResolved advances the queue. */}
+      {templatizeQueue.length > 0 && (
+        <TemplatizePrompt
+          draft={templatizeQueue[0]}
+          sourceTicketRef={activePsaTicketId ? `CW #${activePsaTicketId}` : null}
+          onResolved={() => setTemplatizeQueue((q) => q.slice(1))}
+        />
+      )}
     </div>
     </>
   )