feat(gradle): add Gradle ecosystem with toml-span catalog parser

CHANGELOG.md

@@ -9,13 +9,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - **Gradle ecosystem support** — New `deps-gradle` crate with support for three manifest formats
-  - Version Catalog parser (`gradle/libs.versions.toml`) via toml_edit with position tracking
+  - Version Catalog parser (`gradle/libs.versions.toml`) via toml-span with reliable span tracking
   - Kotlin DSL parser (`build.gradle.kts`) via regex
   - Groovy DSL parser (`build.gradle`) via regex
   - Reuses `MavenCentralRegistry` from deps-maven (no registry duplication)
   - Parses `[versions]`, `[libraries]` sections with `version.ref` resolution
   - Recognizes all Gradle configurations: implementation, api, compileOnly, runtimeOnly, testImplementation, etc.
   - Feature-gated registration in deps-lsp (`gradle`)
+- **Google Maven repository support** — Android packages (`androidx.*`, `com.google.firebase.*`, `com.google.android.*`, `com.android.*`) now resolve from Google Maven instead of Maven Central
 
 ### Changed
 - Extract `LineOffsetTable` and `position_in_range` to deps-core for reuse across ecosystems

Cargo.toml

@@ -43,6 +43,7 @@ thiserror = "2"
 tokio = "1.49"
 tokio-test = "0.4"
 toml_edit = "0.25"
+toml-span = "0.7"
 tower-lsp-server = "0.23"
 tracing = "0.1"
 tracing-subscriber = "0.3"

crates/deps-core/src/lsp_helpers.rs

@@ -44,21 +44,6 @@ impl LineOffsetTable {
         Self { line_starts }
     }
 
-    /// Returns the byte offset of the start of the given 0-based line.
-    pub fn line_start_offset(&self, line: u32) -> usize {
-        self.line_starts.get(line as usize).copied().unwrap_or(0)
-    }
-
-    /// Returns the byte offset of the end of the given 0-based line (before newline).
-    pub fn line_end_offset(&self, content: &str, line: u32) -> usize {
-        let next_line = line as usize + 1;
-        if next_line < self.line_starts.len() {
-            self.line_starts[next_line].saturating_sub(1)
-        } else {
-            content.len()
-        }
-    }
-
     /// Converts a byte offset into an LSP `Position`.
     pub fn byte_offset_to_position(&self, content: &str, offset: usize) -> Position {
         let offset = offset.min(content.len());

crates/deps-gradle/Cargo.toml

@@ -19,7 +19,7 @@ async-trait = { workspace = true }
 regex = { workspace = true }
 thiserror = { workspace = true }
 tokio = { workspace = true }
-toml_edit = { workspace = true }
+toml-span = { workspace = true }
 tower-lsp-server = { workspace = true }
 tracing = { workspace = true }