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>

Cargo.toml

@@ -13,7 +13,7 @@ members = [
 ]
 
 [workspace.package]
-version = "1.1.4"
+version = "1.1.5"
 edition = "2021"
 rust-version = "1.92"
 license = "MIT OR Apache-2.0"