Tune SQLite and remove blocking calls from async/scan paths:
- Enable WAL + synchronous=NORMAL + busy_timeout + foreign_keys on each
pooled connection, so the five scanners, web server, and retention no
longer contend on the default rollback journal / FULL fsync.
- Run DB work in axum handlers via spawn_blocking (db::run_blocking) so
synchronous rusqlite calls no longer block tokio worker threads.
- Deliver notifications on a dedicated task fed by a bounded channel; the
blocking Pushover HTTP call runs in spawn_blocking, so a slow or
unreachable Pushover can never stall device discovery.
- Make get_db_connection() return Result instead of panicking, so pool
exhaustion surfaces as a 500 rather than crashing the process.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Build the Flutter web app at release time (nix/frontend.nix) and bundle
it next to the binary at $out/share/oott/web; resolve it at runtime
relative to the executable. Remove the prebuilt backend/web from git.
- Add web_server.{ip_address,port,api_key} options to the NixOS module so
the generated config deserializes (was missing, causing a startup panic).
- Docker image: set SSL_CERT_FILE for outbound TLS, drop the heavy
nixos/nix base image, trim contents to [oott cacert], and ensure /tmp
exists.
- Remove the unused "nix" flake input and commit flake.lock.
- Provide Swagger UI to utoipa-swagger-ui offline via a pinned fetchurl so
the package builds in the Nix sandbox; skip the redundant check phase
(tests run via backend/run_tests.sh).
- sample_oott.toml: set database.path to /db/oott.db for the Docker image.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
