refactor(approvals): persist title+options on channel/sender approval tables

getAskQuestionRender used to hardcode the card title and option labels
for pending_channel_approvals and pending_sender_approvals in the
DB-access layer, duplicating wording that already lived in the approval
modules. That caused a visible drift between the initial card title —
picked per event in channel-approval.ts ("📣 Bot mentioned in new chat"
vs. "💬 New direct message") — and the post-click render, which
always showed the constant "📣 Channel registration".

Mirror the pattern already used by pending_approvals: add title /
options_json columns on both pending_*_approvals tables via migration
013, have the approval modules write them at creation time, and let
getAskQuestionRender just SELECT.

- Migration 013 ALTERs the two tables to add title + options_json.
- PendingChannelApproval / PendingSenderApproval types and their
  create functions grow the two fields.
- channel-approval.ts / sender-approval.ts normalize options once
  and pass both title and options_json into the insert.
- getAskQuestionRender drops the hardcoded render objects and reads
  the stored values.

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

src/db/sessions.ts

@@ -194,32 +194,20 @@ export function getAskQuestionRender(
     | undefined;
   if (a?.title) return { title: a.title, options: JSON.parse(a.options_json) };
 
-  // Channel-registration approval — options are fixed constants.
+  // Channel-registration + unknown-sender approvals persist title/options_json
+  // the same way pending_approvals does — just SELECT and return.
   if (hasTable(getDb(), 'pending_channel_approvals')) {
-    const c = getDb().prepare('SELECT 1 FROM pending_channel_approvals WHERE messaging_group_id = ?').get(id);
-    if (c) {
-      return {
-        title: '📣 Channel registration',
-        options: [
-          { label: 'Approve', selectedLabel: '✅ Wired', value: 'approve' },
-          { label: 'Ignore', selectedLabel: '🙅 Ignored', value: 'reject' },
-        ],
-      };
-    }
+    const c = getDb()
+      .prepare('SELECT title, options_json FROM pending_channel_approvals WHERE messaging_group_id = ?')
+      .get(id) as { title: string; options_json: string } | undefined;
+    if (c?.title) return { title: c.title, options: JSON.parse(c.options_json) };
   }
 
-  // Unknown-sender approval — options are fixed constants.
   if (hasTable(getDb(), 'pending_sender_approvals')) {
-    const s = getDb().prepare('SELECT 1 FROM pending_sender_approvals WHERE id = ?').get(id);
-    if (s) {
-      return {
-        title: '👤 New sender',
-        options: [
-          { label: 'Allow', selectedLabel: '✅ Allowed', value: 'approve' },
-          { label: 'Deny', selectedLabel: '❌ Denied', value: 'reject' },
-        ],
-      };
-    }
+    const s = getDb().prepare('SELECT title, options_json FROM pending_sender_approvals WHERE id = ?').get(id) as
+      | { title: string; options_json: string }
+      | undefined;
+    if (s?.title) return { title: s.title, options: JSON.parse(s.options_json) };
   }
 
   return undefined;