feat(native): port Julia extractor to Rust (#1098)

* feat(native): port Julia extractor to Rust

Adds tree-sitter-julia dependency and native extractor matching
the WASM-side behavior for Julia symbol, import, and call extraction.

Part of #1071

* fix(parser): register .jl in NATIVE_SUPPORTED_EXTENSIONS

Native Julia support landed in this PR but the JS-side mirror of the
Rust LanguageKind enum was not updated, so the drift guard in
tests/parsers/native-drop-classification.test.ts (and the WASM-only
bucket in classifyNativeDrops) flagged .jl as missing. Add .jl to the
set and drop it from the WASM-only test fixture.

* fix(julia): emit base name for parameterized abstract types

handle_abstract_def previously fell back to the type_head node itself
when no plain identifier was found, dumping the full raw text
"Name{T} <: Super{T,1}" as a definition name for any parameterized
generic abstract type. The TS counterpart returns early on no-name; the
native port should match.

Recurse into wrapper shapes (binary_expression, parameterized identifier,
type_parameter_list, type_argument_list) to locate the base identifier,
and skip emission when none is found. Adds a regression test asserting
the base name "AbstractVector" for
"abstract type AbstractVector{T} <: AbstractArray{T,1} end".

* fix(native/julia): handle parameterized structs, qualified defs, qualified selected imports (#1098)

Author: carlos-alm

Cargo.lock

@@ -36,6 +36,7 @@ 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"
 tree-sitter-clojure-orchard = "0.2"
 rayon = "1"
 ignore = "0.4"

crates/codegraph-core/Cargo.toml

@@ -774,15 +774,14 @@ mod tests {
 
     #[test]
     fn detect_removed_skips_unsupported_extensions() {
-        // Files in WASM-only languages (Gleam, Julia, F#) live in
+        // Files in WASM-only languages (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
         // purge their rows — the #1066 ~2s floor.
         let mut existing = HashMap::new();
         for path in [
             "tests/fixtures/gleam/main.gleam",
-            "tests/fixtures/julia/main.jl",
             "tests/fixtures/fsharp/Main.fs",
         ] {
             existing.insert(

crates/codegraph-core/src/change_detection.rs

@@ -374,6 +374,16 @@ 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: &[],
+};
+
 pub const CLOJURE_AST_CONFIG: LangAstConfig = LangAstConfig {
     new_types: &[],
     throw_types: &[],