feat(lang): rename concept_comparison to definition (v0.3.2)

Renames the `concept_comparison` keyword to `definition` across the
entire codebase for better readability and conciseness.

Changes:
- Tree-sitter grammar: `concept_comparison` node → `definition`
- Tree-sitter queries: highlights, outline, and indents updated
- Zed extension highlights.scm updated to match
- Lexer: `Token::ConceptComparison` → `Token::Definition`
- Parser: `ConceptComparisonDecl` rule → `DefinitionDecl`
- AST: `Declaration::ConceptComparison` → `Declaration::Definition`,
  `ConceptComparisonDecl` struct → `DefinitionDecl`
- All Rust source files updated (validate, names, convert, references,
  semantic_tokens, symbols, code_actions, hover, completion)
- `validate_concept_comparison_patterns` → `validate_definition_patterns`
- Example file and test corpus updated
- Spec docs: created SBIR-v0.3.2-SPEC.md, updated TYPE-SYSTEM.md,
  README.md, SBIR-CHANGELOG.md, SBIR-v0.3.1-SPEC.md

tree-sitter-storybook/grammar.js

@@ -50,7 +50,7 @@ module.exports = grammar({
       $.enum_declaration,
       $.concept_declaration,
       $.sub_concept,
-      $.concept_comparison
+      $.definition
     ),
 
     // Use declarations
@@ -548,9 +548,9 @@ module.exports = grammar({
 
     any_type: $ => 'any',
 
-    // Concept comparison - compile-time pattern matching
-    concept_comparison: $ => seq(
-      'concept_comparison',
+    // Definition - compile-time pattern matching
+    definition: $ => seq(
+      'definition',
       field('name', $.identifier),
       '{',
       commaSep1($.variant_pattern),

tree-sitter-storybook/queries/highlights.scm

@@ -20,7 +20,7 @@
   "state"
   "concept"
   "sub_concept"
-  "concept_comparison"
+  "definition"
 ] @keyword.declaration
 
 ; Keywords - Control flow and modifiers
@@ -83,7 +83,7 @@
 (concept_declaration name: (identifier) @type.concept)
 (sub_concept parent: (identifier) @type.concept)
 (sub_concept name: (identifier) @type.sub_concept)
-(concept_comparison name: (identifier) @type.concept_comparison)
+(definition name: (identifier) @type.definition)
 (variant_pattern name: (identifier) @type.variant)
 (template_declaration species: (identifier) @type.builtin)
 

tree-sitter-storybook/queries/indents.scm

@@ -40,7 +40,7 @@
   (sequence_node)
   (decorator_node)
   (sub_concept)
-  (concept_comparison)
+  (definition)
   (variant_pattern)
 ] @indent.begin
 

tree-sitter-storybook/queries/outline.scm

@@ -66,7 +66,7 @@
   name: (identifier) @name
 ) @symbol.sub_concept
 
-; Concept comparisons
-(concept_comparison
+; Definitions
+(definition
   name: (identifier) @name
-) @symbol.concept_comparison
+) @symbol.definition

tree-sitter-storybook/src/grammar.json

@@ -103,7 +103,7 @@
         },
         {
           "type": "SYMBOL",
-          "name": "concept_comparison"
+          "name": "definition"
         }
       ]
     },
@@ -2657,12 +2657,12 @@
       "type": "STRING",
       "value": "any"
     },
-    "concept_comparison": {
+    "definition": {
       "type": "SEQ",
       "members": [
         {
           "type": "STRING",
-          "value": "concept_comparison"
+          "value": "definition"
         },
         {
           "type": "FIELD",

tree-sitter-storybook/src/node-types.json

@@ -308,32 +308,6 @@
       ]
     }
   },
-  {
-    "type": "concept_comparison",
-    "named": true,
-    "fields": {
-      "name": {
-        "multiple": false,
-        "required": true,
-        "types": [
-          {
-            "type": "identifier",
-            "named": true
-          }
-        ]
-      }
-    },
-    "children": {
-      "multiple": true,
-      "required": true,
-      "types": [
-        {
-          "type": "variant_pattern",
-          "named": true
-        }
-      ]
-    }
-  },
   {
     "type": "concept_declaration",
     "named": true,
@@ -383,11 +357,11 @@
           "named": true
         },
         {
-          "type": "concept_comparison",
+          "type": "concept_declaration",
           "named": true
         },
         {
-          "type": "concept_declaration",
+          "type": "definition",
           "named": true
         },
         {
@@ -493,6 +467,32 @@
       ]
     }
   },
+  {
+    "type": "definition",
+    "named": true,
+    "fields": {
+      "name": {
+        "multiple": false,
+        "required": true,
+        "types": [
+          {
+            "type": "identifier",
+            "named": true
+          }
+        ]
+      }
+    },
+    "children": {
+      "multiple": true,
+      "required": true,
+      "types": [
+        {
+          "type": "variant_pattern",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "dotted_path",
     "named": true,
@@ -2104,11 +2104,11 @@
     "named": false
   },
   {
-    "type": "concept_comparison",
+    "type": "cooldown",
     "named": false
   },
   {
-    "type": "cooldown",
+    "type": "definition",
     "named": false
   },
   {

tree-sitter-storybook/test/corpus/type_system.txt

@@ -58,10 +58,10 @@ sub_concept BakedGood.Quality {
           value: (float))))))
 
 ==================
-Concept comparison
+Definition
 ==================
 
-concept_comparison SkillLevel {
+definition SkillLevel {
     Apprentice: { freshness: any },
     Master: { freshness: Tier is Master }
 }
@@ -70,7 +70,7 @@ concept_comparison SkillLevel {
 
 (source_file
   (declaration
-    (concept_comparison
+    (definition
       name: (identifier)
       (variant_pattern
         name: (identifier)