FG3-4 executable build — economic-settlement process

Upgrades the FG3-4 sub-process from a composition stub to a Level 4 atomic
executable: BPMN process Process_SaimnieciskaNorekina (advance request,
settlement submission/approval, VPC processing, reconciliation and outcome
handling across the Nodarbinatais/Iestade/VPC lanes), DMN decision
Decision_AvansaNorekins (FIRST hit policy, advance-vs-expense reconciliation),
resource roles/agents/mappings and policies metadata. Transcribed from the
Valsts Kase FG3 register sections 3.5.2 and 3.5.4. Validates against the
UAPF 2.2.0 schemas and the uapf-cli validator.

processes/fg3-4/resources/agents.yaml

@@ -0,0 +1,9 @@
+kind: uapf.resources.agents
+agents:
+  - id: agent.norekinu-asistents
+    name: Avansa norēķinu apstrādes asistents
+    type: ai_agent
+    capabilities:
+      - capability.document.extract
+      - capability.policy.lookup
+      - capability.decision.assist