fix(zed): restore highlights.scm - Zed requires local query files

Zed extensions do not automatically use queries from fetched grammars.
They require local query files in languages/<lang>/ directory.

Restored highlights.scm by copying from tree-sitter-storybook/queries/.
The regression test ensures this stays in sync with the source of truth.

Also updated grammar revision to 0590c13 (latest remote commit).

zed-storybook/languages/storybook/highlights.scm

@@ -0,0 +1,162 @@
+; Highlights query for Storybook DSL
+; Maps grammar nodes to standard highlight groups
+
+; Comments
+(line_comment) @comment.line
+(block_comment) @comment.block
+
+; Keywords - Declaration keywords
+[
+  "character"
+  "template"
+  "life_arc"
+  "schedule"
+  "behavior"
+  "institution"
+  "relationship"
+  "location"
+  "species"
+  "enum"
+  "state"
+  "concept"
+  "sub_concept"
+  "concept_comparison"
+] @keyword.declaration
+
+; Keywords - Control flow and modifiers
+[
+  "and"
+  "or"
+  "not"
+  "on"
+  "enter"
+  "strict"
+] @keyword.control
+
+; Keywords - Import/module
+[
+  "use"
+  "include"
+  "from"
+] @keyword.import
+
+; Keywords - Special
+[
+  "as"
+  "self"
+  "other"
+  "remove"
+  "append"
+  "is"
+] @keyword.special
+
+; any type keyword
+(any_type) @keyword.special
+
+; Boolean literals
+[
+  "true"
+  "false"
+] @constant.builtin.boolean
+
+; Numbers
+(integer) @constant.numeric.integer
+(float) @constant.numeric.float
+(time) @constant.numeric.time
+(duration) @constant.numeric.duration
+
+; Strings
+(string) @string
+
+; Identifiers in different contexts
+(character_declaration name: (identifier) @type.character)
+(template_declaration name: (identifier) @type.template)
+(life_arc_declaration name: (identifier) @type.life_arc)
+(schedule_declaration name: (identifier) @type.schedule)
+(behavior_declaration name: (identifier) @type.behavior)
+(institution_declaration name: (identifier) @type.institution)
+(relationship_declaration name: (identifier) @type.relationship)
+(location_declaration name: (identifier) @type.location)
+(species_declaration name: (identifier) @type.species)
+(enum_declaration name: (identifier) @type.enum)
+(state_block name: (identifier) @type.state)
+(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)
+(variant_pattern name: (identifier) @type.variant)
+(template_declaration species: (identifier) @type.builtin)
+
+; Field names
+(field name: (dotted_path) @property)
+(sub_concept_field name: (identifier) @property)
+
+; Species reference
+(character_declaration species: (identifier) @type.builtin)
+
+; Paths and identifiers
+(path) @namespace
+(identifier) @variable
+
+; Prose blocks - tag and content
+(prose_block tag: (identifier) @tag)
+(prose_block marker: (prose_marker) @punctuation.delimiter)
+(prose_content) @markup.raw
+
+; Operators
+[
+  ">"
+  ">="
+  "<"
+  "<="
+  "->"
+  "is"
+] @operator
+
+; Punctuation
+[
+  "{"
+  "}"
+] @punctuation.bracket
+
+[
+  "("
+  ")"
+] @punctuation.bracket
+
+[
+  "["
+  "]"
+] @punctuation.bracket
+
+[
+  ":"
+  "::"
+  ";"
+  ","
+  "."
+  ".."
+  "*"
+  "@"
+] @punctuation.delimiter
+
+; Behavior tree nodes
+(action_node (identifier) @function.action)
+
+; Transitions
+(transition "->" @operator.transition)
+(transition target: (identifier) @type.state)
+
+; Schedule blocks
+(schedule_block name: (identifier) @function.schedule_block)
+
+; Override operations
+(override "@" @keyword.override)
+(override_op "remove" @keyword.override)
+(override_op "append" @keyword.override)
+
+; Template clause
+(template_clause "from" @keyword.import)
+
+; Error handling
+(ERROR) @error