Greg Pomerantz 93a5f879f5 feat: implement atomic writes for filesystem backend ... - Add WriteFile method to mock filesystem (non-atomic path, creates files) - Implement WriteFileAtomic in mock with temp file + rename pattern using .tmp/ directory, matching real filesystem semantics - Update WriteFileTask.Execute() to use WriteFileAtomic - Update FlushAll() to use WriteFileAtomic - Fix mock to create files on write (matching os.WriteFile behavior) - Update tests to match new semantics (create-if-not-exists)		2026-06-04 18:01:51 -04:00
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filesystem.go	feat: implement atomic writes for filesystem backend	2026-06-04 18:01:51 -04:00