feat(ui): replace title-only filter with full-text search (T8.2, FR-SEARCH-1)

The search box now searches transcripts + notes (not just titles) and
shows a matched snippet per result. FTS5 is word-based rather than
substring-based, a deliberate tradeoff for gaining full-content search.

src/lib/views/MeetingsList.svelte

@@ -1,15 +1,24 @@
 <script lang="ts">
-  // Left pane: meetings list + search/filter (Phase 2, FR-STORE-5; Phase 8 search).
+  // Left pane: meetings list + full-text search (Phase 2, FR-STORE-5; T8.2, FR-SEARCH-1).
   import { meetings } from "../stores/meetings.svelte";
   import { recording } from "../stores/recording.svelte";
-  import type { MeetingListItem } from "../api";
+  import type { MeetingListItem, SearchHit } from "../api";
 
   let query = $state("");
   let searchTimer: ReturnType<typeof setTimeout> | undefined;
 
   function onSearchInput() {
     clearTimeout(searchTimer);
-    searchTimer = setTimeout(() => meetings.load(query || undefined), 250);
+    searchTimer = setTimeout(() => meetings.search(query), 250);
+  }
+
+  // Unified view: full-text results (with snippets) while searching, else the
+  // plain list. Same underlying fields either way.
+  let displayItems = $derived<(MeetingListItem | SearchHit)[]>(
+    meetings.searchResults ?? meetings.list,
+  );
+  function snippetOf(item: MeetingListItem | SearchHit): string | null {
+    return "snippet" in item ? item.snippet : null;
   }
 
   function formatDate(unixSecs: number): string {
@@ -28,7 +37,7 @@
     return `${m}:${s.toString().padStart(2, "0")}`;
   }
 
-  async function openMeeting(m: MeetingListItem) {
+  async function openMeeting(m: MeetingListItem | SearchHit) {
     if (recording.state !== "idle" && recording.meetingId === m.id) return; // still live
     await meetings.select(m.id);
   }
@@ -52,13 +61,17 @@
     bind:value={query}
     oninput={onSearchInput}
   />
-  {#if meetings.list.length === 0 && meetings.loading}
+  {#if meetings.searching}
+    <p class="muted">Searching…</p>
+  {:else if displayItems.length === 0 && meetings.loading}
     <p class="muted">Loading meetings…</p>
-  {:else if meetings.list.length === 0}
+  {:else if displayItems.length === 0 && meetings.searchResults !== null}
+    <p class="muted">No matches.</p>
+  {:else if displayItems.length === 0}
     <p class="muted">No meetings yet. Click ● Record to start.</p>
   {:else}
     <ul>
-      {#each meetings.list as m (m.id)}
+      {#each displayItems as m (m.id)}
         <li class:active={meetings.selectedId === m.id}>
           <button class="item-btn" onclick={() => openMeeting(m)}>
             <span class="row">
@@ -75,6 +88,9 @@
               <span>{formatDate(m.started_at)}</span>
               {#if m.duration_secs}<span>{formatDuration(m.duration_secs)}</span>{/if}
             </span>
+            {#if snippetOf(m)}
+              <span class="snippet">{snippetOf(m)}</span>
+            {/if}
           </button>
           <div class="row actions">
             {#if m.status === "recovering"}
@@ -113,6 +129,15 @@
   .small {
     font-size: 0.75rem;
   }
+  .snippet {
+    display: block;
+    color: var(--muted);
+    font-size: 0.78rem;
+    margin-top: 0.15rem;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
   ul {
     list-style: none;
     padding: 0;