Add Belgium's target, precalibration and holdout reference documents

changelog.d/be-reference-documents.added.md

@@ -0,0 +1 @@
+Add Belgium's calibration, pre-calibration and holdout reference documents, generated by `tools/generate_be_target_references.py` from a pinned Chronicle `be` feed (`chronicle_feed.json`). References carry selectors only. Demography targets Statbel's 1 January 2026 population by region, sex and age. Statbel A.1's eight broad stand-in income bands (the d1952 measure), B.4's joint and individual declarations, ONSS contributions and FPB benefit and mixed-income aggregates roll 2023 to 2025 facts to 2026 by declared FPB June 2026 ratio pairs. Commune population is the pre-calibration geography support. Eurostat D51A_C1, NBB and Eurostat household accounts, and FPB's gross wages are holdouts. B.1 assessed tax stays inactive because its tax-definition, income-ranking and policy-year checks fail. Rows without a producer or ruling stay parked with a named reason. `reference_inventory.json` records the stand-in gaps, ageing ratios, B.1 checks and every exclusion, and `reference_aging.json` holds G8-r2 diagnostic factors from RSZ wage totals. The catalog declares two euro money columns. Belgium stays inactive, and every method-card choice remains proposed pending d1902.

packages/microcosm-build/src/microcosm/build/be/chronicle_feed.json

@@ -0,0 +1,16 @@
+{
+  "version": 1,
+  "country": "be",
+  "scope": "be_calibration",
+  "source_repo": "PolicyEngine/chronicle",
+  "source_commit": "2c7e8357f1dcb9af2337c10d6cf4cbd82b1e55ef",
+  "build": "build-bundle --suite be -> build-consumer-artifact",
+  "artifact_schema_version": "policyengine_ledger.consumer_artifact.v2",
+  "consumer_fact_schema_versions": [
+    "chronicle.consumer_fact.v4"
+  ],
+  "consumer_fact_schema_sha256": "d953306d6f01fbc64db4372d0262d3012ee590269f8a25b276b18dca0626c6a0",
+  "fact_row_count": 87112,
+  "facts_sha256": "e01a463065a81ba60139a24a605e52797442504478be60970e0ff66f9d3c6b95",
+  "manifest_sha256": "7839792643a6a32a1784328644df16c250e8d4ba08287c455983a6e7ceebb34c"
+}

packages/microcosm-build/src/microcosm/build/be/country_package.json

@@ -32,6 +32,11 @@
       "kind": "vintages",
       "schema_id": "vintages.schema.json"
     },
+    {
+      "path": "chronicle_feed.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
     {
       "path": "gates.json",
       "kind": "legacy_json",
@@ -42,6 +47,36 @@
       "kind": "legacy_json",
       "schema_id": "legacy_json"
     },
+    {
+      "path": "holdout_references.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
+    {
+      "path": "precal_references.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
+    {
+      "path": "reference_aging.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
+    {
+      "path": "reference_intervals.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
+    {
+      "path": "reference_inventory.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
+    {
+      "path": "reference_profiles.json",
+      "kind": "legacy_json",
+      "schema_id": "legacy_json"
+    },
     {
       "path": "release_contract.json",
       "kind": "legacy_json",