Test scanner progress observer at unit tier

packages/ts/e2e-attestations/claude-1330-scanner-count.json

@@ -0,0 +1,7 @@
+{
+  "command": "pnpm test:e2e",
+  "ran_at": 1791257368,
+  "exit_code": 0,
+  "commit": "0471560c26376e26460b17a812faf0b4988c6d4d",
+  "branch": "claude/1330-scanner-count"
+}

testing-conventions.toml

@@ -141,12 +141,6 @@ rules = ["mutation"]
 lines = [389, 401, 431, 468]
 reason = "whether a repo encloses the walk, and which .gitignore files are in force, is known only from a real tree holding .git; the choice of directories is unit-tested in enclosing_repo and dirs_above, and tests/path_table_gitignore.rs (with_no_repo_a_gitignore_does_not_apply_at_the_index_root, inside_a_repo_the_same_gitignore_hides_everything, a_repo_root_gitignore_above_the_index_root_applies) asserts every outcome"
 
-[[rust.exempt]]
-path = "src/scanner.rs"
-rules = ["mutation"]
-lines = [91]
-reason = "the walk's running file count is observable only through the CLI's progress line; tests/scan_progress_e2e.rs forced_progress_reports_the_walk_phase_on_stderr asserts the number"
-
 [[rust.exempt]]
 path = "src/scanner.rs"
 rules = ["mutation"]