docs: update casehub-aml.md — Layers 1 and 2 complete

[mdproctor]

Status field

Change from Greenfield — no code yet, epics defined to:

Active — Layer 1 (naive baseline) and Layer 2 (casehub-work) complete

What is now implemented in casehubio/aml

Layer 1 (casehubio/aml#12 — closed):

• api/: domain records (SuspiciousTransaction, EntityResolutionResult, PatternAnalysisResult, OsintResult, InvestigationSummary, AmlInvestigationResult) + service interfaces (EntityResolutionService, PatternAnalysisService, OsintScreeningService, SarDraftingService)
• api/: AmlInvestigationApplicationService use-case port interface
• app/tutorial/: 4 package-private naive stubs + NaiveAmlInvestigationService (@ApplicationScoped @DefaultBean, 4 LAYER 1 GAP comments)
• app/: AmlInvestigationResource — POST /api/investigations returning AmlInvestigationResult

Layer 2 (casehubio/aml#15 — closed):

• app/tutorial/: WorkItemAmlInvestigationService (@ApplicationScoped, displaces @DefaultBean)
• Creates compliance officer WorkItem via casehub-work on every investigation: candidateGroups=compliance-officers, claimDeadline=now+30days, callerRef=aml:investigation/{txId}
• Response: { summary: {...}, complianceReviewTaskId: "..." }
• 8 tests passing (4 unit + 4 @QuarkusTest)

Architecture note to add

The AML repo follows hexagonal architecture (PP-20260512-9b8847 — parent#18 pending):

• api/ = domain layer (pure Java, no framework deps)
• app/ = application + infrastructure layer (CDI, REST, Quarkus)