Skip snapshot seed file commits (anomalyco#28405)

Author: kitlangton

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

@@ -44,8 +44,6 @@ const initialize = Effect.fn("SnapshotTest.initialize")(function* (dir: string)
   const bContent = `B${unique}`
   yield* write(`${dir}/a.txt`, aContent)
   yield* write(`${dir}/b.txt`, bContent)
-  yield* exec(dir, ["git", "add", "."])
-  yield* exec(dir, ["git", "commit", "-m", "init"])
   return { aContent, bContent }
 })
 

perf/test-suite.md

@@ -85,6 +85,7 @@ Repeated setup work, long sleeps/timeouts, serial integration tests, filesystem/
 | Oversized snapshot batch tests only need to cross the 100-file boundary                                   | Reduced large diff/revert fixture sizes while keeping each case above the batch boundary       | 4.32s     | 3.66s   | keep     | Three affected snapshot tests; after median from three reruns (4.32, 3.66, 3.66) while still crossing the 100-file boundary.     |
 | Prompt tests without LLM calls do not need the test LLM server                                            | Added a no-server runner and moved obvious non-LLM prompt/shell cases to it                    | 25.41s    | 21.03s  | keep     | Full prompt file after simplify pass median from three reruns (20.66, 21.03, 21.64); LLM-backed tests stay on original runner.   |
 | CLI run subprocess cases can run independently                                                            | Marked `run-process.test.ts` subprocess cases concurrent                                       | 11.87s    | 4.13s   | keep     | Newest-dev single baseline; after median from three reruns (4.13, 4.17, 4.11). Each case has an isolated temp home and LLM port. |
+| Snapshot initialization does not need to commit seeded files in the source repo                           | Removed extra `git add`/`commit` from the snapshot test `initialize()` helper                  | 22.22s    | 20.23s  | keep     | Newest-dev single baseline; after median from three reruns (20.23, 22.59, 20.11). Fixture still creates a git repo root commit.  |
 
 ## Profiling Results