fix: compare linked repo status by path

apps/daemon/src/repo-changes.ts

@@ -77,8 +77,11 @@ export function summarizeLinkedRepoChanges(
   const beforeByPath = new Map(before.linkedDirs.map((dir) => [dir.path, dir]));
   const linkedDirs: LinkedRepoChangeDirectorySummary[] = after.linkedDirs.map((dir) => {
     const baseline = beforeByPath.get(dir.path);
-    const baselineLines = new Set(baseline?.statusLines ?? []);
-    const newStatusLineCount = dir.statusLines.filter((line) => !baselineLines.has(line)).length;
+    const baselinePaths = new Set((baseline?.statusLines ?? []).flatMap(statusLinePaths));
+    const newStatusLineCount = dir.statusLines.filter((line) => {
+      const paths = statusLinePaths(line);
+      return paths.length === 0 || paths.every((path) => !baselinePaths.has(path));
+    }).length;
     const preexistingChangeCount = Math.min(
       dir.statusLineCount,
       Math.max(0, dir.statusLineCount - newStatusLineCount),
@@ -184,6 +187,17 @@ function splitLines(value: string): string[] {
     .filter((line) => line.trim().length > 0);
 }
 
+function statusLinePaths(line: string): string[] {
+  const value = line.length > 3 ? line.slice(3).trim() : line.trim();
+  if (!value) return [];
+  const renameSeparator = ' -> ';
+  if (!value.includes(renameSeparator)) return [value];
+  return value
+    .split(renameSeparator)
+    .map((part) => part.trim())
+    .filter(Boolean);
+}
+
 function errorMessage(err: unknown): string {
   if (!err) return 'Unknown git error.';
   if (err instanceof Error && err.message.trim()) return err.message.trim();

apps/daemon/tests/repo-changes.test.ts

@@ -90,6 +90,54 @@ describe('linked repo change summaries', () => {
     });
   });
 
+  it('treats status-only transitions on the same path as pre-existing changes', () => {
+    const before: LinkedRepoSnapshot = {
+      generatedAt: 1,
+      linkedDirs: [
+        {
+          path: '/repo',
+          status: 'changed',
+          branch: 'main',
+          headSha: 'abc1234',
+          statusLines: [' M src/app.ts'],
+          statusLineCount: 1,
+          untrackedFileCount: 0,
+          diffStat: 'src/app.ts | 2 ++',
+          error: null,
+        },
+      ],
+    };
+    const after: LinkedRepoSnapshot = {
+      generatedAt: 2,
+      linkedDirs: [
+        {
+          path: '/repo',
+          status: 'changed',
+          branch: 'main',
+          headSha: 'abc1234',
+          statusLines: ['M  src/app.ts'],
+          statusLineCount: 1,
+          untrackedFileCount: 0,
+          diffStat: 'src/app.ts | 2 ++',
+          error: null,
+        },
+      ],
+    };
+
+    const summary = summarizeLinkedRepoChanges(before, after);
+
+    expect(summary).toMatchObject({
+      changedFileCount: 1,
+      newStatusLineCount: 0,
+      preexistingChangeCount: 1,
+    });
+    expect(summary.linkedDirs[0]).toMatchObject({
+      changedFileCount: 1,
+      newStatusLineCount: 0,
+      preexistingChangeCount: 1,
+    });
+  });
+
   it('reports a linked dir as not_git when git cannot read it as a repository', async () => {
     const runGit: RunGit = async () => {
       throw new Error('fatal: not a git repository');