feat(app): support file:// protocol URLs for opening workspace files

packages/app/src/utils/inline-path.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { parseInlinePathToken } from "./inline-path";
+import { parseFileProtocolUrl, parseInlinePathToken } from "./inline-path";
 
 describe("parseInlinePathToken", () => {
   it("returns null for plain paths (no line)", () => {
@@ -31,3 +31,42 @@ describe("parseInlinePathToken", () => {
   });
 });
 
+describe("parseFileProtocolUrl", () => {
+  it("parses file URLs with line fragments", () => {
+    expect(
+      parseFileProtocolUrl("file:///Users/test/project/src/app.tsx#L81")
+    ).toEqual({
+      raw: "file:///Users/test/project/src/app.tsx#L81",
+      path: "/Users/test/project/src/app.tsx",
+      lineStart: 81,
+      lineEnd: undefined,
+    });
+  });
+
+  it("parses file URLs without line fragments", () => {
+    expect(
+      parseFileProtocolUrl("file:///Users/test/project/src/app.tsx")
+    ).toEqual({
+      raw: "file:///Users/test/project/src/app.tsx",
+      path: "/Users/test/project/src/app.tsx",
+      lineStart: undefined,
+      lineEnd: undefined,
+    });
+  });
+
+  it("parses windows file URLs and line ranges", () => {
+    expect(
+      parseFileProtocolUrl("file:///C:/Users/test/project/src/app.tsx#L12-L20")
+    ).toEqual({
+      raw: "file:///C:/Users/test/project/src/app.tsx#L12-L20",
+      path: "C:/Users/test/project/src/app.tsx",
+      lineStart: 12,
+      lineEnd: 20,
+    });
+  });
+
+  it("rejects non-file URLs and invalid ranges", () => {
+    expect(parseFileProtocolUrl("https://example.com/test.ts#L10")).toBeNull();
+    expect(parseFileProtocolUrl("file:///Users/test/project/src/app.tsx#L20-L12")).toBeNull();
+  });
+});