feat: auto-detect events, seva tasks, and FAQs from WhatsApp messages

Adds the AI-driven content pipeline so portal content is never manually
created — the system proposes it, admins review and approve.

Worker:
- `tower.event.extract` queue + Event Extractor processor: LLM extracts
  event title/date/time/location from messages with #event hashtag,
  date/time patterns, RSVP phrases, or location terms; seva action items
  within event messages become separate SEVA_TASK drafts
- `tower.faq.candidate` queue + FAQ Curator processor: LLM extracts Q&A
  pairs from messages with question patterns + meaningful answer length
- `classify.processor.ts`: `isEventCandidate()` and `isFaqCandidate()`
  run after rule matching on all non-spam, non-DNC messages; candidates
  are enqueued to the extraction lanes in parallel with normal routing
- `match-rules.ts`: add P1 to TenantRuleRow action union so P1 rules
  are fully typed end-to-end
- `NormalizedMessage`: add `quotedPlatformMsgId` field
- `IngestJobData.effectiveAction`: add `'P1'` to the union

Schema:
- `ContentDraft` model with `DraftType` (EVENT|SEVA_TASK|FAQ_ITEM) and
  `DraftStatus` (PENDING_REVIEW|APPROVED|REJECTED); carries `proposedJson`
  from the LLM, `confidence` score, and `publishedId` after approval
- Migration: `20260617270000_add_content_drafts`

API:
- `DraftsModule`: `GET /admin/drafts`, `POST /admin/drafts/:id/approve`,
  `POST /admin/drafts/:id/reject`; approve creates the actual
  Event/SevaOpportunity/KnowledgeItem and marks the draft APPROVED;
  reject marks it REJECTED — both audit-logged

Web:
- `/admin/drafts` and `/drafts` — tabbed view by type (All/Events/Seva/FAQ)
- `DraftCard` — shows source message excerpt, AI proposed content, and
  approve/reject buttons; approve/reject immediately refresh the list
- "AI Drafts" added to both super-admin and tenant-admin sidebars
- "AI Content Drafts" button added to admin dashboard

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

apps/web/app/admin/drafts/page.tsx

@@ -0,0 +1,100 @@
+import { apiFetch } from '../../_lib/api';
+import { redirect } from 'next/navigation';
+import { getToken } from '../../_lib/api';
+import { DraftCard } from './DraftCard';
+import Link from 'next/link';
+
+type DraftType = 'EVENT' | 'SEVA_TASK' | 'FAQ_ITEM';
+
+interface Draft {
+  id: string;
+  type: DraftType;
+  status: string;
+  proposedJson: Record<string, any>;
+  confidence: number | null;
+  createdAt: string;
+  sourceMessage: {
+    id: string;
+    content: string;
+    senderName: string | null;
+    createdAt: string;
+  };
+}
+
+const TABS: { label: string; value: DraftType | 'ALL' }[] = [
+  { label: 'All', value: 'ALL' },
+  { label: 'Events', value: 'EVENT' },
+  { label: 'Seva Tasks', value: 'SEVA_TASK' },
+  { label: 'FAQs', value: 'FAQ_ITEM' },
+];
+
+async function fetchDrafts(type?: DraftType): Promise<Draft[]> {
+  const query = new URLSearchParams({ status: 'PENDING_REVIEW' });
+  if (type) query.set('type', type);
+  const res = await apiFetch(`/admin/drafts?${query}`);
+  if (!res.ok) return [];
+  return (await res.json()) as Draft[];
+}
+
+export default async function DraftsPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ type?: string }>;
+}) {
+  const token = await getToken();
+  if (!token) redirect('/login');
+
+  const { type } = await searchParams;
+  const activeType = (type as DraftType) ?? undefined;
+  const drafts = await fetchDrafts(activeType);
+
+  return (
+    <div className="p-6 max-w-5xl mx-auto space-y-6">
+      <div className="flex items-center justify-between">
+        <div>
+          <h1 className="text-xl font-semibold text-gray-900">AI Content Drafts</h1>
+          <p className="text-sm text-gray-500 mt-0.5">
+            Events, seva tasks, and FAQs auto-detected from WhatsApp messages
+          </p>
+        </div>
+        <Link href="/admin" className="text-sm text-indigo-600 hover:underline">← Admin</Link>
+      </div>
+
+      {/* Type filter tabs */}
+      <div className="flex gap-1 border-b border-gray-200">
+        {TABS.map((tab) => {
+          const href = tab.value === 'ALL' ? '/admin/drafts' : `/admin/drafts?type=${tab.value}`;
+          const isActive = (tab.value === 'ALL' && !activeType) || tab.value === activeType;
+          return (
+            <Link
+              key={tab.value}
+              href={href}
+              className={`px-4 py-2 text-sm font-medium border-b-2 -mb-px transition-colors ${
+                isActive
+                  ? 'border-indigo-600 text-indigo-600'
+                  : 'border-transparent text-gray-500 hover:text-gray-700'
+              }`}
+            >
+              {tab.label}
+            </Link>
+          );
+        })}
+      </div>
+
+      {drafts.length === 0 ? (
+        <div className="text-center py-20 text-gray-400">
+          <p className="text-sm font-medium">No pending drafts</p>
+          <p className="text-xs mt-1">
+            Drafts appear here when the AI detects events, volunteer asks, or FAQ patterns in group messages.
+          </p>
+        </div>
+      ) : (
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          {drafts.map((d) => (
+            <DraftCard key={d.id} draft={d} />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}