refactor: JobEngine cleanup + crypto compose refactor + sprint plans + timeline merge prep

- Remove zombie JobEngine WebService (no container runs it)
- Remove dangling STELLAOPS_JOBENGINE_URL, replace with RELEASE_ORCHESTRATOR_URL
- Update Timeline audit paths to release-orchestrator
- Extract smremote to docker-compose.crypto-provider.smremote.yml
- Rename crypto compose files for consistent naming
- Add crypto provider health probe API (CP-001) + tenant preferences (CP-002)
- Create sprint plans: crypto picker, VulnExplorer merge, scheduler plugins
- Timeline merge prep: ingestion worker relocated to infrastructure lib

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Timeline/__Tests/StellaOps.Timeline.WebService.Tests/TimelineStartupRegistrationTests.cs

@@ -25,6 +25,8 @@ public sealed class TimelineStartupRegistrationTests
                         ["Eventing:UseInMemoryStore"] = "false",
                         ["Eventing:ConnectionString"] = "Host=localhost;Port=5432;Database=timeline;Username=postgres;Password=postgres",
                         ["Authority:ResourceServer:Authority"] = "http://localhost",
+                        // Required by TimelineIndexer Postgres registration (merged from timeline-indexer)
+                        ["Postgres:Timeline:ConnectionString"] = "Host=localhost;Port=5432;Database=timeline;Username=postgres;Password=postgres",
                     });
                 });
             });