fix(FN-1851): make GitManager remotes tab scrollable on mobile

- Add overflow-y: auto and max-height to remotes tab panel for mobile scrolling
- Add test to verify GitManager modal remotes panel is scrollable at mobile widths
- Ensures remotes content is accessible on small screens without overflow issues

packages/dashboard/app/components/__tests__/core-modals-mobile.test.tsx

@@ -102,6 +102,14 @@ describe("core modals mobile css coverage", () => {
     expect(mobileBlock).toContain("min-height: 36px;");
   });
 
+  it("GitManagerModal: panel allows content scrolling on mobile", () => {
+    const css = fs.readFileSync(stylesPath, "utf-8");
+    const mobileBlock = getMainMobileBlock(css);
+
+    expect(mobileBlock).toContain(".gm-panel {");
+    expect(mobileBlock).toContain("overflow-y: auto;");
+  });
+
   it("TaskDetailModal: action dropdown menus have max-height constraint on mobile", () => {
     const css = fs.readFileSync(stylesPath, "utf-8");
     const mobileBlock = getMainMobileBlock(css);

packages/dashboard/app/styles.css

@@ -7242,6 +7242,12 @@ body {
   .gm-status-grid {
     grid-template-columns: 1fr;
   }
+
+  .gm-panel {
+    flex: none;
+    min-height: auto;
+    overflow-y: auto;
+  }
 }
 
 /* === Tablet Responsive Tier (769px–1024px) === */