Add BMML (Business Model Markup Language) schema

src/api/json/catalog.json

@@ -9330,6 +9330,12 @@
       "fileMatch": ["bento.json", "bento.yml", "bento.yaml"],
       "url": "https://raw.githubusercontent.com/warpstreamlabs/bento/refs/heads/main/resources/schemastore/bento.json"
     },
+    {
+      "name": "BMML",
+      "description": "Business Model Markup Language - a YAML format for describing business models based on Alexander Osterwalder's Business Model Canvas",
+      "fileMatch": ["*.bmml", "*.bmml.yaml", "*.bmml.yml"],
+      "url": "https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/bmml.json"
+    },
     {
       "name": "pgxgen",
       "description": "pgxgen configuration file",

src/negative_test/bmml/bmml.yaml

@@ -0,0 +1,12 @@
+# yaml-language-server: $schema=../../schemas/json/bmml.json
+# Invalid BMML: missing required 'portfolio' field in meta
+version: '2.0'
+
+meta:
+  name: 'Invalid Example'
+  stage: ideation
+  # portfolio is missing - should be required
+
+customer_segments:
+  - id: cs-test
+    name: Test Segment