composition skeleton: L1 accounting domain + six L2 function-group packages

Step 2 of the vk-gramatvediba build (absorbs the planned Step 3 — the
enterprise index now references the domain, since the two are one
coherent unit).

- domains/gramatvediba/ — L1 domain package; includes the six FG packages
- processes/fg1..fg6/ — six L2 function-group packages (composition stubs;
  FG3 carries its sub-process inventory and is taken to executable depth
  in later steps)
- each package: uapf.yaml + metadata/ownership.yaml + metadata/lifecycle.yaml
  + README
- enterprise/enterprise.yaml now references the L1 domain

All 22 manifests and metadata files validate against the UAPF 2.2.0
schemas; all seven includes / enterprise references resolve.

processes/fg6/README.md

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+# FG6 — Pārskatu sagatavošana publiskošanai
+
+Function group 6 - preparation of reports for publication: preparing and signing reports including the annual report, and inventory of liabilities, receivables and financial assets.
+
+- **UAPF level:** L2 (function group)
+- **Package id:** `vk.gramatvediba.fg6`
+- **Source:** Valsts Kase *Grāmatvedības uzskaites procesu apraksts* — FG6 schema and process register.
+
+## Status
+
+Composition placeholder. Sub-process packages are not expanded in this
+proof-of-concept, which takes FG3 to executable depth as the representative
+function group. This package reserves the function-group identity and its
+slot in the L0-L4 composition graph.

processes/fg6/metadata/lifecycle.yaml

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+kind: uapf.metadata.lifecycle
+status: draft
+created: "2026-05-19T00:00:00Z"
+lastModified: "2026-05-19T00:00:00Z"

processes/fg6/metadata/ownership.yaml

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+kind: uapf.metadata.ownership
+owners:
+  - type: organization
+    id: vpc
+    name: Vienotais pakalpojumu centrs (Valsts Kase)
+    role: owner
+approvers:
+  - vpc.process-office

processes/fg6/uapf.yaml

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+kind: uapf.package
+id: vk.gramatvediba.fg6
+name: "FG6 — Pārskatu sagatavošana publiskošanai"
+description: "Function group 6 - preparation of reports for publication: preparing and signing reports including the annual report, and inventory of liabilities, receivables and financial assets."
+level: 2
+version: 0.1.0
+includes: []
+cornerstones:
+  bpmn: false
+  dmn: false
+  cmmn: false
+  resources: false
+owners:
+  - type: team
+    id: vpc
+lifecycle: draft