Added schema abc-clinical-demand-forecast-4.0.0.json

- Added abc-clinical-demand-forecast-4.0.0.json schema file
- Updated catalog.json to include version 4.0.0 and set as default
- Updated schema-validation.jsonc with validation configuration
- Added positive test case for version 4.0.0
- Copied negative test cases from version 3.0.0

Key changes in version 4.0.0:
- Added optional enrollmentStartOffset property in two object definitions
  (one for child-region defaults, one for actual-value-with-inherit).
  Type: integer or null. Minimum: 0. Default: 0. Represents months from
  site activation until first enrollment (First Patient In lead time).
  Null means inherit from parent; the default-for-child-regions variant
  defaults to 0 if no ancestor sets a value.
- The property is NOT in any required array, so existing 3.0.0 data
  validates against 4.0.0 unchanged. The major-version designation
  reflects that the new property meaningfully changes lead-time behavior
  for downstream consumers even though the schema permits omitting it.

Testing:
- Validated schema-specific: node ./cli.js check --schema-name=abc-clinical-demand-forecast-4.0.0.json (PASS)
- Validated full test suite: node ./cli.js check (PASS, all 804 tested schemas)

Stacked-branch note: this branch was created from feature/publish-abc-clinical-demand-forecast-3.0.0 (not master) because the 2.0.0 and 3.0.0 PRs have not yet been merged upstream. When the 3.0.0 PR merges, rebase this branch onto master before merging.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Michael Osofsky

src/api/json/catalog.json

@@ -221,11 +221,12 @@
       "name": "ABCClinicalDemandForecast",
       "description": "ABCClinicalDemandForecast defining the structure of clinical trial demand forecasting data in ABC-Plan",
       "fileMatch": ["abc-clinical-demand-forecast-*.json"],
-      "url": "https://www.schemastore.org/abc-clinical-demand-forecast-3.0.0.json",
+      "url": "https://www.schemastore.org/abc-clinical-demand-forecast-4.0.0.json",
       "versions": {
         "1.0.0": "https://www.schemastore.org/abc-clinical-demand-forecast-1.0.0.json",
         "2.0.0": "https://www.schemastore.org/abc-clinical-demand-forecast-2.0.0.json",
-        "3.0.0": "https://www.schemastore.org/abc-clinical-demand-forecast-3.0.0.json"
+        "3.0.0": "https://www.schemastore.org/abc-clinical-demand-forecast-3.0.0.json",
+        "4.0.0": "https://www.schemastore.org/abc-clinical-demand-forecast-4.0.0.json"
       }
     },
     {

src/negative_test/abc-clinical-demand-forecast-4.0.0/abc-clinical-demand-forecast-missing-schema-property.json

@@ -0,0 +1,10 @@
+{
+  "analytics": {
+    "items": [],
+    "layouts": [],
+    "tabs": []
+  },
+  "clinicalDemandCalculatedForecast": null,
+  "clinicalDemandForecastConfiguration": {},
+  "planNotes": ""
+}

src/schema-validation.jsonc

@@ -453,6 +453,9 @@
     "abc-clinical-demand-forecast-3.0.0.json": {
       "unknownKeywords": ["abcHasValidKitItemReferences"]
     },
+    "abc-clinical-demand-forecast-4.0.0.json": {
+      "unknownKeywords": ["abcHasValidKitItemReferences"]
+    },
     "abc-supply-plan-1.0.0.json": {
       "unknownFormat": ["abc-draft-js_RawDraftContentState"],
       "unknownKeywords": [