feat(v1.1.6): realtime channels + v1.1.5 follow-ups + version bumps

Server-side realtime SSE on per-app pub/sub topics, plus the three
v1.1.5 follow-ups and the version bumps.

Realtime:
- topics registry (0021) + admin endpoints + Capability::AppTopicManage
  (-> app:admin; no new scope).
- GET /realtime/topics/{topic} SSE endpoint (orchestrator-core data
  plane): Host -> app, RealtimeAuthority gate (404 missing/internal,
  401 bad/absent token), broadcast::Receiver stream + heartbeat.
- RealtimeBroadcaster / RealtimeEvent / RealtimeAuthority traits
  (picloud-shared); InProcessBroadcaster + GC (orchestrator-core);
  DB-backed RealtimeAuthorityImpl (manager-core). Publish path fans out
  to in-process subscribers after the durable outbox commit (best-effort,
  panic-isolated).
- HMAC subscriber tokens (subscriber_token.rs) + app_secrets table (0022)
  + pubsub::subscriber_token SDK (schema 1.6 -> 1.7). TTL clamp + env
  overrides.
- Dashboard Topics tab (register/list/edit/delete, prominent external
  badge, flip confirmation).

v1.1.5 follow-ups:
- Empty blobs accepted (NewFile/FileUpdate::validate) + round-trip test.
- Orphan *.tmp.* sweeper (spawn_files_orphan_sweep).
- Dispatcher e2e tests, one per trigger kind (DATABASE_URL-gated).

Versions: workspace 1.1.6, SDK 1.7, dashboard 0.12.0. Schema-snapshot
golden re-blessed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/manager-core/src/lib.rs

@@ -16,6 +16,7 @@ pub mod app_domain_repo;
 pub mod app_members_api;
 pub mod app_members_repo;
 pub mod app_repo;
+pub mod app_secrets_repo;
 pub mod apps_api;
 pub mod auth;
 pub mod auth_api;
@@ -33,6 +34,7 @@ pub mod docs_service;
 pub mod files_api;
 pub mod files_repo;
 pub mod files_service;
+pub mod files_sweep;
 pub mod gc;
 pub mod http_service;
 pub mod kv_repo;
@@ -45,12 +47,15 @@ pub mod outbox_repo;
 pub mod principal_resolver;
 pub mod pubsub_repo;
 pub mod pubsub_service;
+pub mod realtime_authority;
 pub mod repo;
 pub mod route_admin;
 pub mod route_repo;
 pub mod sandbox;
 pub mod scheduler;
 pub mod ssrf;
+pub mod topic_repo;
+pub mod topics_api;
 pub mod trigger_config;
 pub mod trigger_repo;
 pub mod triggers_api;
@@ -81,6 +86,9 @@ pub use app_members_repo::{
     PostgresAppMembersRepository,
 };
 pub use app_repo::{resolve_app, AppLookup, AppRepository, PostgresAppRepository};
+pub use app_secrets_repo::{
+    AppSecretsRepo, AppSecretsRepoError, PostgresAppSecretsRepo, SIGNING_KEY_LEN,
+};
 pub use apps_api::{apps_router, AppsState};
 pub use auth_api::auth_router;
 pub use auth_bootstrap::{
@@ -104,6 +112,7 @@ pub use docs_service::DocsServiceImpl;
 pub use files_api::{files_admin_router, FilesAdminState};
 pub use files_repo::{FilesConfig, FilesRepo, FilesRepoError, FsFilesRepo};
 pub use files_service::FilesServiceImpl;
+pub use files_sweep::{spawn_files_orphan_sweep, sweep_orphan_tmp_files, SweepStats};
 pub use gc::{spawn_abandoned_gc, spawn_dead_letter_gc};
 pub use http_service::{HttpConfig, HttpServiceImpl};
 pub use kv_repo::{KvRepo, KvRepoError, PostgresKvRepo};
@@ -116,7 +125,8 @@ pub use outbox_repo::{
 };
 pub use principal_resolver::{AdminPrincipalResolver, PrincipalResolver, PrincipalResolverError};
 pub use pubsub_repo::{PostgresPubsubRepo, PublishCtx, PubsubRepo, PubsubRepoError};
-pub use pubsub_service::PubsubServiceImpl;
+pub use pubsub_service::{PubsubServiceImpl, SubscriberTokenConfig};
+pub use realtime_authority::RealtimeAuthorityImpl;
 pub use repo::{
     ExecutionLogRepository, NewScript, PostgresExecutionLogRepository, PostgresScriptRepository,
     RepoResolver, ScriptPatch, ScriptRepository, ScriptRepositoryError,
@@ -124,6 +134,8 @@ pub use repo::{
 pub use route_admin::{compile_routes, route_admin_router, RouteAdminState};
 pub use route_repo::{NewRoute, PostgresRouteRepository, RouteRepository};
 pub use sandbox::{CeilingError, SandboxCeiling};
+pub use topic_repo::{PostgresTopicRepo, Topic, TopicAuthMode, TopicRepo, TopicRepoError};
+pub use topics_api::{topics_router, TopicsApiError, TopicsState};
 pub use trigger_config::{BackoffShape, TriggerConfig};
 pub use trigger_repo::{
     collection_matches, CreateDeadLetterTrigger, CreateDocsTrigger, CreateFilesTrigger,