chore(v1.1.5): version bumps, CI workflow, schema-snapshot un-ignore

- Workspace 1.1.4 → 1.1.5; SDK 1.5 → 1.6; dashboard 0.10.0 → 0.11.0.
- CHANGELOG v1.1.5 entry; CLAUDE.md runtime-config table gains
  PICLOUD_FILES_ROOT + PICLOUD_FILES_MAX_FILE_SIZE_BYTES.
- schema_snapshot test: drop #[ignore] + #[sqlx::test]; run against
  DATABASE_URL when set, skip cleanly when absent. Re-blessed golden
  picks up files / files_trigger_details / pubsub_trigger_details, the
  two widened CHECKs, and the pubsub partial index.
- First CI workflow (.github/workflows/ci.yml): postgres:15 service +
  fmt + clippy + cargo test --workspace; separate dashboard check job.
- Add files/pubsub admin-trigger reject-coverage tests (module +
  cross-app + bad-pattern), mirroring the v1.1.3 regression set.

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

crates/shared/src/version.rs

@@ -39,7 +39,17 @@ pub const PRODUCT_VERSION: &str = env!("CARGO_PKG_VERSION");
 /// SSRF deny-list on the resolved IP); `ctx.event.cron` for cron-trigger
 /// handlers (carries `schedule`, `timezone`, `scheduled_at`, `fired_at`).
 /// The `Services` bundle gains `http: Arc<dyn HttpService>`.
-pub const SDK_VERSION: &str = "1.5";
+///
+/// 1.6 additions (v1.1.5):
+/// `files::collection(name).{create,head,get,update,delete,list}` —
+/// filesystem-backed blob storage (blobs in/out; metadata maps;
+/// checksum-verified reads) with `ctx.event.files` for files-trigger
+/// handlers (metadata only, never the bytes); and
+/// `pubsub::publish_durable(topic, message)` — durable pub/sub with
+/// publish-time fan-out and `ctx.event.pubsub` for pubsub-trigger
+/// handlers. The `Services` bundle gains `files: Arc<dyn FilesService>`
+/// and `pubsub: Arc<dyn PubsubService>`.
+pub const SDK_VERSION: &str = "1.6";
 
 /// HTTP API major version. Appears in URL paths as `/api/v{N}/...`.
 /// Bump (new integer + new URL prefix) when the request/response