fix(opencode): skip nested repositories in snapshots

packages/opencode/src/snapshot/index.ts

@@ -257,7 +257,7 @@ const layer: Layer.Layer<Service, never, FSUtil.Service | AppProcess.Service | C
 
           const tracked = diff.text.split("\0").filter(Boolean)
           const untracked = other.text.split("\0").filter(Boolean)
-          const all = Array.from(new Set([...tracked, ...untracked]))
+          const all = Array.from(new Set([...tracked, ...untracked])).filter((item) => !item.endsWith("/"))
           if (!all.length) return
 
           // Resolve source-repo ignore rules against the exact candidate set.

packages/opencode/test/snapshot/snapshot.test.ts

@@ -174,6 +174,25 @@ it.instance(
   { git: true },
 )
 
+it.instance(
+  "skips untracked nested repositories without commits",
+  Effect.gen(function* () {
+    const tmp = yield* bootstrap()
+    const snapshot = yield* Snapshot.Service
+    const before = yield* snapshot.track()
+    expect(before).toBeTruthy()
+    yield* exec(tmp.path, ["git", "init", "tui"])
+    yield* write(`${tmp.path}/tui/nested.txt`, "nested")
+    yield* write(`${tmp.path}/added.txt`, "added")
+
+    const files = (yield* snapshot.patch(before!)).files
+
+    expect(files).toContain(fwd(tmp.path, "added.txt"))
+    expect(files.some((file) => file.includes("/tui/"))).toBe(false)
+  }),
+  { git: true },
+)
+
 it.instance(
   "binary file handling",
   withTrackedSnapshot(({ tmp, snapshot, before }) =>