Custom RTMP saved accounts, CUSTOM destination prepare, debug logging

- Add POST /providers/accounts/custom-rtmp endpoint for saved RTMP servers
- Encrypt rtmpUrl/streamKey in accessTokenEnc/refreshTokenEnc fields
- Decrypt and return rtmpUrl/streamKey in GET /providers/accounts for CUSTOM_RTMP
- Skip token revocation on DELETE for CUSTOM_RTMP accounts
- Decrypt CUSTOM_RTMP credentials into CUSTOM destinations on plan create/update
- Handle CUSTOM destinations in prepare lifecycle (already READY, skip provider auth)
- Add debug logging for plan operations and user upsert

src/routes/streams/lifecycle.ts

@@ -82,11 +82,17 @@ const lifecycleRoutes: FastifyPluginAsync = async (fastify) => {
       },
     },
   }, async (request) => {
+    request.log.info({ planId: request.params.id, userId: request.userId }, 'Prepare plan request');
     const plan = await fastify.prisma.streamPlan.findFirst({
       where: { id: request.params.id, userId: request.userId },
       include: { destinations: true },
     });
-    if (!plan) throw new AppError(404, 'Stream plan not found');
+    if (!plan) {
+      // Debug: check if plan exists under any user
+      const anyPlan = await fastify.prisma.streamPlan.findUnique({ where: { id: request.params.id } });
+      request.log.warn({ planId: request.params.id, userId: request.userId, existsUnderOtherUser: !!anyPlan, otherUserId: anyPlan?.userId }, 'Plan not found for user');
+      throw new AppError(404, 'Stream plan not found');
+    }
 
     // If already READY, return the existing prepared data
     if (plan.status === 'READY') {
@@ -94,7 +100,7 @@ const lifecycleRoutes: FastifyPluginAsync = async (fastify) => {
         planId: plan.id,
         destinations: plan.destinations.map((dest) => ({
           id: dest.id,
-          serviceId: dest.serviceId as 'YOUTUBE' | 'TWITCH',
+          serviceId: dest.serviceId as 'YOUTUBE' | 'TWITCH' | 'CUSTOM',
           rtmpUrl: dest.rtmpUrl || '',
           streamKey: dest.streamKey || '',
           broadcastId: dest.broadcastId || '',
@@ -110,6 +116,24 @@ const lifecycleRoutes: FastifyPluginAsync = async (fastify) => {
     const prepared: PreparedDestination[] = [];
 
     for (const dest of plan.destinations) {
+      // CUSTOM destinations are already READY with rtmpUrl/streamKey set at creation
+      if (dest.serviceId === 'CUSTOM') {
+        if (dest.status !== 'READY') {
+          await fastify.prisma.streamDestination.update({
+            where: { id: dest.id },
+            data: { status: 'READY' },
+          });
+        }
+        prepared.push({
+          id: dest.id,
+          serviceId: 'CUSTOM',
+          rtmpUrl: dest.rtmpUrl || '',
+          streamKey: dest.streamKey || '',
+          broadcastId: '',
+        });
+        continue;
+      }
+
       const { account, accessToken } = await getDecryptedTokenByAccountId(
         fastify.prisma,
         request.userId,