refactor(trips, feeds): drop added return annotations; no double await on the feed guard

server/src/nest/feeds/feeds.mcp.ts

@@ -76,7 +76,7 @@ export class FeedsMcp {
   })
   async getTripCalendarFeed({ tripId }: { tripId: number }, ctx: McpContext) {
     const denied = await this.denyTripFeed(tripId, ctx.userId);
-    if ((await denied)) return denied;
+    if (denied) return denied;
     return ok(await this.feeds.getTripToken(String(tripId), ctx.userId, this.base()));
   }
 
@@ -92,7 +92,7 @@ export class FeedsMcp {
   async enableTripCalendarFeed({ tripId }: { tripId: number }, ctx: McpContext) {
     if (await this.isDemoUser(ctx.userId)) return demoDenied();
     const denied = await this.denyTripFeed(tripId, ctx.userId);
-    if ((await denied)) return denied;
+    if (denied) return denied;
     return ok(await this.feeds.generateTripToken(String(tripId), ctx.userId, this.base()));
   }
 
@@ -108,7 +108,7 @@ export class FeedsMcp {
   async rotateTripCalendarFeed({ tripId }: { tripId: number }, ctx: McpContext) {
     if (await this.isDemoUser(ctx.userId)) return demoDenied();
     const denied = await this.denyTripFeed(tripId, ctx.userId);
-    if ((await denied)) return denied;
+    if (denied) return denied;
     return ok(await this.feeds.rotateTripToken(String(tripId), ctx.userId, this.base()));
   }
 
@@ -124,7 +124,7 @@ export class FeedsMcp {
   async disableTripCalendarFeed({ tripId }: { tripId: number }, ctx: McpContext) {
     if (await this.isDemoUser(ctx.userId)) return demoDenied();
     const denied = await this.denyTripFeed(tripId, ctx.userId);
-    if ((await denied)) return denied;
+    if (denied) return denied;
     await this.feeds.disableTripToken(String(tripId), ctx.userId);
     // Matches the route, which answers the cleared token as a null URL.
     return ok({ feed_url: null });

server/src/nest/trips/trips.service.ts

@@ -167,7 +167,7 @@ export class TripsService {
     return this.dbs.connection;
   }
 
-  async canAccessTrip(tripId: string | number, userId: number): Promise<{ user_id: number } | null | undefined> {
+  async canAccessTrip(tripId: string | number, userId: number) {
     return this.dbs.canAccessTrip(tripId, userId) as { user_id: number } | null | undefined;
   }
 
@@ -185,7 +185,7 @@ export class TripsService {
 
   // ── Day generation ────────────────────────────────────────────────────────
 
-  async generateDays(tripId: number | bigint | string, startDate: string | null, endDate: string | null, dayCount?: number): Promise<void> {
+  async generateDays(tripId: number | bigint | string, startDate: string | null, endDate: string | null, dayCount?: number) {
     const existing = this.db.prepare('SELECT id, day_number, date FROM days WHERE trip_id = ?').all(tripId) as { id: number; day_number: number; date: string | null }[];
     const setDayNumber = this.db.prepare('UPDATE days SET day_number = ? WHERE id = ?');