Fix Obsidian sync by running sync-setup before sync

The container was failing with "No sync configuration found" because
ob sync was called without first running ob sync-setup. Now startup.sh
configures sync using environment variables before starting continuous
sync, and gracefully skips sync if setup fails.

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

startup.sh

@@ -7,9 +7,26 @@ aerich upgrade
 mkdir -p /app/data/obsidian
 
 # Start continuous Obsidian sync if enabled
+if [ "${OBSIDIAN_CONTINUOUS_SYNC}" = "true" ]; then
+    VAULT_PATH="${OBSIDIAN_VAULT_PATH:-/app/data/obsidian}"
+
+    # Setup sync if not already configured
+    if ! ob sync-status --path "$VAULT_PATH" > /dev/null 2>&1; then
+        echo "Configuring Obsidian sync..."
+        ob sync-setup \
+            --vault "${OBSIDIAN_VAULT_ID}" \
+            --path "$VAULT_PATH" \
+            --password "${OBSIDIAN_E2E_PASSWORD}" \
+            --device-name "${OBSIDIAN_DEVICE_NAME:-simbarag}" || {
+                echo "Failed to configure Obsidian sync. Skipping."
+                OBSIDIAN_CONTINUOUS_SYNC=false
+            }
+    fi
+
     if [ "${OBSIDIAN_CONTINUOUS_SYNC}" = "true" ]; then
         echo "Starting Obsidian continuous sync in background..."
-    ob sync --continuous &
+        ob sync --path "$VAULT_PATH" --continuous &
+    fi
 fi
 
 echo "Starting application..."