fix: strip query strings from sourceMappingURL + fix stale JSDoc

- Strip ?query and #fragment from sourceMappingURL before resolving
  (Vite/Rollup append ?v=hash which would prevent disk lookup)
- Fix ArtifactFile.sourcemapFilename JSDoc: now relative URL, not basename
- Fix computeCommonPrefix JSDoc tautology

Author: BYK

src/commands/sourcemap/upload.ts

@@ -69,9 +69,8 @@ const USAGE_HINT = "sentry sourcemap upload <directory>";
 /**
  * Compute the longest common directory prefix across a list of paths.
  *
- * Only strips at directory boundaries (slashes), so
- * `["a/b/c.js", "a/b/d.js"]` yields `"a/b/"` rather than `"a/b/"`.
- * Returns `""` when paths share no common directory prefix.
+ * Strips at directory boundaries only — `["a/bc.js", "a/bd.js"]`
+ * yields `"a/"` (not `"a/b"`). Returns `""` when no common dir prefix.
  */
 function computeCommonPrefix(paths: string[]): string {
   if (paths.length === 0) {

src/lib/api/sourcemaps.ts

@@ -87,8 +87,8 @@ export type ArtifactFile = {
    */
   url: string;
   /**
-   * Optional associated sourcemap filename (for minified_source entries).
-   * Just the basename, e.g., `"bin.js.map"`.
+   * Optional sourcemap reference for the `Sourcemap` header (minified_source entries).
+   * Relative URL from the JS file to its map, e.g., `"bin.js.map"` or `"maps/app.js.map"`.
    */
   sourcemapFilename?: string;
 };

src/lib/sourcemap/inject.ts

@@ -195,9 +195,13 @@ async function findCompanionMap(jsPath: string): Promise<string | undefined> {
     return;
   }
 
+  // Strip query strings and fragments (e.g. "app.js.map?v=abc123")
+  // that bundlers like Vite/Rollup may append.
+  const cleanUrl = url.split("?")[0].split("#")[0];
+
   // Resolve relative path against the JS file's directory
   const jsDir = dirname(jsPath);
-  const resolvedMapPath = resolvePath(jsDir, url);
+  const resolvedMapPath = resolvePath(jsDir, cleanUrl);
   if (await fileExists(resolvedMapPath)) {
     return resolvedMapPath;
   }