feat(idaa): add guided empty state for filtered results + star button on meeting detail

- +page.svelte: when search returns zero results and filters are active, show
  "No meetings found for these filters" with a one-click "Clear all filters" button
  instead of the bare no-results message. The 8s cache-reset escape hatch is
  unchanged and still fires only when zero results appear with no filters set.
- [event_id]/+page.svelte: add star/favorites button to the detail page nav bar
  alongside Back/Edit. Loads the same idaa_meetings_favorites data_store record
  on mount; PATCHes the shared record on toggle. State is optimistic with rollback.

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

src/routes/idaa/(idaa)/recovery_meetings/+page.svelte

@@ -73,6 +73,14 @@ let no_results_no_filters = $derived(
     !($idaa_loc.recovery_meetings.qry__fulltext_str?.trim())
 );
 
+// True when any filter dimension is active — drives the guided empty state.
+let has_active_filters = $derived(
+    !!$idaa_loc.recovery_meetings.qry__physical ||
+    !!$idaa_loc.recovery_meetings.qry__virtual ||
+    !!$idaa_loc.recovery_meetings.qry__type ||
+    !!($idaa_loc.recovery_meetings.qry__fulltext_str?.trim())
+);
+
 let show_cache_reset_btn = $state(false);
 let cache_reset_timer: any = null;
 
@@ -111,6 +119,13 @@ async function handle_cache_reset() {
     }
     $idaa_sess.recovery_meetings.search_version++;
 }
+function clear_filters() {
+    $idaa_loc.recovery_meetings.qry__physical = null;
+    $idaa_loc.recovery_meetings.qry__virtual = null;
+    $idaa_loc.recovery_meetings.qry__type = null;
+    $idaa_loc.recovery_meetings.qry__fulltext_str = null;
+    $idaa_sess.recovery_meetings.search_version++;
+}
 // ─────────────────────────────────────────────────────────────────────────────────────
 
 // Standardized Reactive Search Pattern (Aether UI V3)
@@ -441,24 +456,40 @@ if (browser) {
                 </button>
             </div>
         {:else}
-            <div
+            {#if has_active_filters}
-                class="ae_highlight ae_padding_md ae_row ae_flex_justify_center">
+                <!-- Guided empty state: filters are active but returned no results.
-                No recovery meetings found matching your criteria.
+                     Distinct from the zero-unfiltered-results path (which indicates a data problem).
-            </div>
+                     Here the member may simply have narrowed too far — offer a one-click escape. -->
-            {#if show_cache_reset_btn}
-                <!-- Escape hatch: surfaces after 8s when zero results + no active filters.
-                     With ~140 active meetings, zero unfiltered results always indicates
-                     stale IDB data. Clears the event cache and triggers a fresh API fetch. -->
                 <div class="ae_highlight ae_padding_md ae_row ae_flex_justify_center flex-col gap-2 text-center">
-                    <p class="text-sm opacity-75">Still not seeing meetings? Your local cache may be out of date.</p>
+                    <p>No meetings found for these filters.</p>
                     <button
                         type="button"
-                        class="btn btn-sm preset-tonal-warning m-auto"
+                        class="btn btn-sm preset-tonal-primary m-auto"
-                        onclick={handle_cache_reset}>
+                        onclick={clear_filters}>
-                        <span class="fas fa-sync-alt m-1"></span>
+                        <span class="fas fa-times m-1"></span>
-                        Refresh Meeting Cache
+                        Clear all filters
                     </button>
                 </div>
+            {:else}
+                <div
+                    class="ae_highlight ae_padding_md ae_row ae_flex_justify_center">
+                    No recovery meetings found matching your criteria.
+                </div>
+                {#if show_cache_reset_btn}
+                    <!-- Escape hatch: surfaces after 8s when zero results + no active filters.
+                         With ~140 active meetings, zero unfiltered results always indicates
+                         stale IDB data. Clears the event cache and triggers a fresh API fetch. -->
+                    <div class="ae_highlight ae_padding_md ae_row ae_flex_justify_center flex-col gap-2 text-center">
+                        <p class="text-sm opacity-75">Still not seeing meetings? Your local cache may be out of date.</p>
+                        <button
+                            type="button"
+                            class="btn btn-sm preset-tonal-warning m-auto"
+                            onclick={handle_cache_reset}>
+                            <span class="fas fa-sync-alt m-1"></span>
+                            Refresh Meeting Cache
+                        </button>
+                    </div>
+                {/if}
             {/if}
         {/if}
     </div>

src/routes/idaa/(idaa)/recovery_meetings/[event_id]/+page.svelte

@@ -38,10 +38,25 @@ import {
 import Event_obj_id_edit from '../ae_idaa_comp__event_obj_id_edit.svelte';
 import Event_obj_id_view from '.././ae_idaa_comp__event_obj_id_view.svelte';
 import Help_tech from '$lib/app_components/e_app_help_tech.svelte';
+import { api } from '$lib/api/api';
 
 // *** Quickly pull out data from parent(s)
 let ae_acct = $derived(data[data.account_id]);
 
+// Favorites stored in data_store (code: idaa_meetings_favorites, scoped to IDAA account_id).
+// Same shared record used by the meeting list view; see ae_idaa_comp__event_obj_li.svelte.
+let ds_fav_id = $state<string | null>(null);
+let ds_fav_json = $state<Record<string, string[]>>({});
+let fav_in_progress = $state(false);
+
+let event_id_for_fav = $derived(ae_acct?.slct?.event_id ?? null);
+let is_fav = $derived.by(() => {
+    const my_uuid = $idaa_loc.novi_uuid;
+    if (!my_uuid || !event_id_for_fav) return false;
+    const my_favs = ds_fav_json[my_uuid];
+    return Array.isArray(my_favs) && my_favs.includes(event_id_for_fav);
+});
+
 $idaa_sess.recovery_meetings.edit__event_obj = null;
 $effect(() => {
     if (!ae_acct) return;
@@ -131,6 +146,55 @@ onMount(() => {
     }
 });
 
+onMount(async () => {
+    if (!$idaa_loc.novi_uuid || !$ae_api?.base_url) return;
+    try {
+        const result = await api.get_data_store({
+            api_cfg: $ae_api,
+            code: 'idaa_meetings_favorites'
+        });
+        const rec_id = result?.data_store_id || result?.id;
+        if (rec_id) {
+            ds_fav_id = rec_id;
+            let raw = result.json ?? result.json_str ?? null;
+            if (typeof raw === 'string') {
+                try { raw = JSON.parse(raw); } catch { raw = {}; }
+            }
+            ds_fav_json = (raw as Record<string, string[]>) ?? {};
+        }
+    } catch (err) {
+        console.warn('[favorites] Failed to load favorites data store:', err);
+    }
+});
+
+async function toggle_favorite() {
+    const my_uuid = $idaa_loc.novi_uuid;
+    const event_id = event_id_for_fav;
+    if (!my_uuid || !event_id || !ds_fav_id || fav_in_progress) return;
+    fav_in_progress = true;
+    const current_user_list: string[] = Array.isArray(ds_fav_json[my_uuid])
+        ? [...ds_fav_json[my_uuid]] : [];
+    const new_user_list = is_fav
+        ? current_user_list.filter((id) => id !== event_id)
+        : [...current_user_list, event_id];
+    const prev_json = ds_fav_json;
+    const new_full_json = { ...ds_fav_json, [my_uuid]: new_user_list };
+    ds_fav_json = new_full_json;
+    try {
+        await api.update_ae_obj({
+            api_cfg: $ae_api,
+            obj_type: 'data_store',
+            obj_id: ds_fav_id,
+            fields: { json: JSON.stringify(new_full_json) }
+        });
+    } catch (err) {
+        console.warn('[favorites] API persist failed, rolling back:', err);
+        ds_fav_json = prev_json;
+    } finally {
+        fav_in_progress = false;
+    }
+}
+
 onDestroy(() => {
     if (log_lvl) {
         console.log(
@@ -255,6 +319,23 @@ onDestroy(() => {
         <!-- <span class="fas fa-times m-1"></span> View Other Meetings -->
     </a>
 
+    {#if $idaa_loc.novi_uuid && ds_fav_id}
+        <button
+            type="button"
+            onclick={toggle_favorite}
+            disabled={fav_in_progress}
+            aria-pressed={is_fav}
+            style="background:none; border:none; box-shadow:none; padding:4px 8px; cursor:pointer; line-height:1; opacity:{is_fav ? '1' : '0.5'}; transition:opacity 0.15s, color 0.15s;"
+            title={is_fav ? 'Remove from My Meetings' : 'Add to My Meetings'}>
+            {#if fav_in_progress}
+                <span class="fas fa-spinner fa-spin" style="font-size:1rem;"></span>
+            {:else}
+                <span class="fas fa-star" style="font-size:1rem; color:{is_fav ? '#d97706' : 'currentColor'};"></span>
+            {/if}
+            <span style="font-size:0.85rem; margin-left:3px;">{is_fav ? 'In My Meetings' : 'Add to My Meetings'}</span>
+        </button>
+    {/if}
+
     <!-- View (default)/Edit event_id toggle -->
     {#if $idaa_sess.recovery_meetings.edit__event_obj}
         <button