Multiple admins

Adds Player.is_admin (creator starts with it; backfilled by migration).
Admin-key-authenticated POST /admin/set-admin grants/revokes it from the
admin panel; the creator's privileges can't be revoked. Admin-gated
backend routes (dev mode, skip character creation) and frontend controls
(corner menu, lobby start, scene start, end story) now check is_admin
instead of is_creator, and admins get the admin_key in their state blob
so granted players can open the admin panel.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/components/LobbyPhase.svelte

@@ -37,7 +37,8 @@
             <div class="player-chip {p.id === state.player.id ? 'current-user' : ''}">
                 <span class="avatar-icon">🐀</span>
                 <span class="name">{p.name}</span>
-                {#if p.is_creator}<span class="creator-badge">Creator</span>{/if}
+                {#if p.is_creator}<span class="creator-badge">Creator</span>
+                {:else if p.is_admin}<span class="creator-badge">Admin</span>{/if}
             </div>
             {/each}
         </div>
@@ -54,9 +55,9 @@
             </div>
         </div>
         
-        {#if state.player.is_creator}
+        {#if state.player.is_admin}
         <div class="link-item admin-link-item">
-            <h4 class="gold-text">⚠️ Creator Admin Magic Link:</h4>
+            <h4 class="gold-text">⚠️ Admin Magic Link:</h4>
             <p class="info-text">Save this admin link! You can use it to recover character sheets if another player loses their connection or link.</p>
             <div class="copy-container">
                 <input type="text" readonly value="{window.location.origin}/#/game/{state.game.id}/admin" class="copy-input admin-input" id="admin-link-copy">
@@ -72,7 +73,7 @@
     </div>
     
     <div class="lobby-action">
-        {#if state.player.is_creator}
+        {#if state.player.is_admin}
             {#if state.players.length >= 1}
             <button on:click={startGame} 
                     disabled={starting}

frontend/src/components/SceneSetupPhase.svelte

@@ -44,7 +44,7 @@
     $: allRolesAssigned = state.players.every(p => p.role !== null || p.needs_reroll);
     $: deepPlayer = state.players.find(p => p.role === 'deep');
     $: piratPlayer = state.players.find(p => p.role === 'pirat');
-    $: canStart = allRolesAssigned && deepPlayer && piratPlayer && (state.player.is_creator || state.player.role === 'deep');
+    $: canStart = allRolesAssigned && deepPlayer && piratPlayer && (state.player.is_admin || state.player.role === 'deep');
 </script>
 
 <div class="scene-setup-view text-center">

frontend/src/components/UpkeepPhase.svelte

@@ -344,7 +344,7 @@
             {/if}
         {/if}
 
-        {#if state.player.is_creator && state.game.phase === 'between_scenes'}
+        {#if state.player.is_admin && state.game.phase === 'between_scenes'}
             <div class="end-story-box">
                 <p class="info-text" style="font-size: 0.85rem;">All good stories end. When the crew agrees the legend is complete:</p>
                 <button on:click={finishGame} class="btn btn-danger">🏴‍☠️ End the Story</button>

frontend/src/pages/Admin.svelte

@@ -40,6 +40,19 @@
             data = null;
         }
     }
+
+    async function setAdmin(playerId, makeAdmin) {
+        try {
+            await apiRequest(`/game/${gameId}/admin/set-admin`, 'POST', {
+                key: adminKey,
+                target_player_id: playerId,
+                is_admin: makeAdmin,
+            });
+            await loadAdminData();
+        } catch (err) {
+            error = err.message;
+        }
+    }
 </script>
 
 <div class="admin-page">
@@ -71,6 +84,7 @@
                         <th>Role</th>
                         <th>Status</th>
                         <th>Rank</th>
+                        <th>Admin</th>
                         <th>Re-join Link</th>
                     </tr>
                 </thead>
@@ -92,6 +106,15 @@
                                 {/if}
                             </td>
                             <td>{p.rank}</td>
+                            <td>
+                                {#if p.is_creator}
+                                    🗝 Creator
+                                {:else if p.is_admin}
+                                    <button on:click={() => setAdmin(p.id, false)} class="btn btn-secondary btn-small">Revoke Admin</button>
+                                {:else}
+                                    <button on:click={() => setAdmin(p.id, true)} class="btn btn-secondary btn-small">Grant Admin</button>
+                                {/if}
+                            </td>
                             <td>
                                 <div class="link-copy-action">
                                     <a href={rejoinLink(p.id)} class="btn btn-secondary btn-small">Open</a>

frontend/src/pages/Dashboard.svelte

@@ -94,9 +94,14 @@
         }
     }
 
+    // Admins get the admin key in their state blob; stash it so the Admin page works for them too
+    $: if (state?.player?.is_admin && state?.game?.admin_key) {
+        localStorage.setItem(`admin_key_${gameId}`, state.game.admin_key);
+    }
+
     $: {
         const items = [];
-        if (state?.player?.is_creator) {
+        if (state?.player?.is_admin) {
             items.push({
                 label: `🧪 Dev Mode: ${state.game.dev_mode ? 'On' : 'Off'}`,
                 action: toggleDevMode,