v0.8.0

[0.8.0] - 2026-04-08

Added

• Added a configurable watcher backend with non-breaking native
  default behavior plus a poll fallback mode for environments where
  native filesystem notifications are unreliable.
• Added a Rust repeated-edit watch flake smoke test that can be run
  locally with DEVLOOP_RUN_WATCH_FLAKE_SMOKE=1 cargo test --test watch_flake_smoke -- --nocapture.
• Added explicit trailing-slash syntax for literal directory watch
  targets, for example content/, so recursive directory intent is
  preserved even when the directory does not yet exist at startup.
• Added a development guide under docs/development.md
  and exposed it in the CLI as devloop docs development.

Changed

• devloop now derives concrete watch targets from configured watch
  patterns and asks the backend to watch only those files or
  directories instead of always watching the whole repository root.
• The watch flake smoke test is now opt-in instead of running during
  every default cargo test or CI run. The existing runtime smoke test
  remains in CI.

Fixed

• Native watch registration now resolves file and directory targets at
  runtime, so startup no longer depends on those paths already existing
  when config is parsed.
• Fixed a real watch flake where the debounce batch could be dropped if
  another tokio::select! branch won the race while filesystem events
  were already buffered.
• Test-only environment mutation now lives behind locked helpers with
  documented safety rationale instead of scattered raw unsafe blocks.

Full Changelog: v0.7.0...v0.8.0