fix: scope Alpine gitea_workspace + commit admin fallback + settings cleanup

1. gitea_workspace.html: owner/repo en Jinja2 dans la topbar (pas Alpine)
2. gitea.py: save_file/delete_file → _require_gitea (admin token can write)
3. settings.html: retrait doublon defaultView, fix workspace_name Jinja2

app/routers/gitea.py

@@ -88,7 +88,7 @@ async def get_file(request: Request, owner: str, repo: str, path: str):
 async def save_file(request: Request, owner: str, repo: str):
     """Create or update a file in the repo."""
     import json
-    gitea = _require_user_gitea(request)
+    gitea = _require_gitea(request)  # admin token can write too
     try:
         body = await request.json()
     except Exception:
@@ -111,7 +111,7 @@ async def save_file(request: Request, owner: str, repo: str):
 async def delete_file(request: Request, owner: str, repo: str):
     """Delete a file from the repo."""
     import json
-    gitea = _require_user_gitea(request)
+    gitea = _require_gitea(request)  # admin token can write too
     path = request.query_params.get("path", "")
     sha = request.query_params.get("sha", "")
     message = request.query_params.get("message", "Delete via FlowDeck")

app/templates/gitea_workspace.html

@@ -9,7 +9,7 @@
   </button>
   <div class="topbar-left">
     <a href="/workspaces" class="breadcrumb" style="color:rgba(255,255,255,.5);text-decoration:none;">Home</a>
-    <span class="page-title-topbar" x-text="owner + '/' + repo"></span>
+    <span class="page-title-topbar">{{ owner }}/{{ repo }}</span>
   </div>
   <div class="topbar-right">
     <button class="page-action-btn" @click="refreshTree()" title="Refresh">🔄</button>

app/templates/settings.html

@@ -259,22 +259,7 @@
           <div class="setting-row">
             <div>
               <div class="setting-label">Workspace name</div>
-              <div class="setting-desc" x-text="'{{ workspace_name }}'"></div>
-            </div>
-          </div>
-          <div class="setting-row">
-            <div>
-              <div class="setting-label">Default view</div>
-              <div class="setting-desc">Choose the default view for new pages</div>
-            </div>
-            <div class="setting-control">
-              <select class="settings-select" x-model="defaultView" @change="saveDefaultView()">
-                <option value="tree">🌳 Tree</option>
-                <option value="list">📋 List</option>
-                <option value="details">📊 Details</option>
-                <option value="title">🏷️ Cards</option>
-                <option value="content">📝 Content</option>
-              </select>
+              <div class="setting-desc">{{ workspace_name }}</div>
             </div>
           </div>
         </div>