Open chat file links at the referenced line (#2309)

* fix(app): open chat file links at referenced lines

Pass chat file locations through the editable CodeMirror path so opening a reference selects and scrolls to its requested line. Cover the real assistant-link flow with a browser regression.

* fix(app): repeat chat file navigation

Track file navigation separately from stable tab identity so reopening the same path and line recenters both editable and read-only panes. Extend the browser regression to cover moving away and clicking the same link again.

* test(app): stabilize repeated file link navigation

packages/app/src/file-pane/editor/view.tsx

@@ -1,11 +1,14 @@
 import { Text, View } from "react-native";
 import { StyleSheet } from "react-native-unistyles";
 import type { HighlightStyle } from "@getpaseo/highlight";
+import type { WorkspaceFileLocation } from "@/workspace/file-open";
 import type { FileEditorModel } from "./model";
 
 export function FileEditorView(_props: {
   model: FileEditorModel;
   filename: string;
+  location: WorkspaceFileLocation;
+  navigationRevision: number;
   vimEnabled: boolean;
   theme: {
     background: string;