feat(native): port Julia extractor to Rust

crates/codegraph-core/Cargo.toml

@@ -35,6 +35,7 @@ tree-sitter-dart = "0.0.4"
 tree-sitter-zig = "1"
 tree-sitter-haskell = "0.23"
 tree-sitter-ocaml = "0.24"
+tree-sitter-julia = "0.23"
 rayon = "1"
 ignore = "0.4"
 globset = "0.4"

crates/codegraph-core/src/change_detection.rs

@@ -774,7 +774,7 @@ mod tests {
 
     #[test]
     fn detect_removed_skips_unsupported_extensions() {
-        // Files in WASM-only languages (Clojure, Gleam, Julia, F#) live in
+        // Files in WASM-only languages (Clojure, Gleam, F#) live in
         // `file_hashes` because the JS-side WASM backfill writes them, but
         // Rust's narrower file_collector never collects them. Without this
         // skip, every incremental rebuild would flag them as removed and
@@ -783,7 +783,6 @@ mod tests {
         for path in [
             "tests/fixtures/clojure/main.clj",
             "tests/fixtures/gleam/main.gleam",
-            "tests/fixtures/julia/main.jl",
             "tests/fixtures/fsharp/Main.fs",
         ] {
             existing.insert(

crates/codegraph-core/src/extractors/helpers.rs

@@ -360,6 +360,16 @@ pub const OCAML_AST_CONFIG: LangAstConfig = LangAstConfig {
     string_prefixes: &[],
 };
 
+pub const JULIA_AST_CONFIG: LangAstConfig = LangAstConfig {
+    new_types: &[],
+    throw_types: &[],
+    await_types: &[],
+    string_types: &["string_literal", "prefixed_string_literal"],
+    regex_types: &[],
+    quote_chars: &['"'],
+    string_prefixes: &[],
+};
+
 // ── Generic AST node walker ──────────────────────────────────────────────────
 
 /// Node types that represent identifiers across languages.