[argszero]

Summary

Fix the "ghost model" bug: seed_models only upserted config [[models]] into the models table and never deleted rows that were removed from config — so models dropped from config.toml stayed in the DB forever and kept showing up in the market list.

Now seed_models performs a full sync on startup: upsert every config model, then delete any models row whose (provider, model) is not in config. Config [[models]] is the authoritative single source of truth (v0.7.1 architecture).

Related Rant

• Rant timestamp: 2026-08-20T11:58:33 — "seed_models 只 upsert 不删除，config 移除的模型永久残留 DB（市场显示幽灵模型）"

Changes

• src/db.rs — seed_models: after upserting config models, scan DB rows and delete (provider, model) pairs absent from config (models table has no FK references; usage_records/transactions store model as string). Log counts of upserted vs deleted rows.
• src/db.rs — new test seed_models_deletes_config_removed_rows: inserts a ghost row, re-seeds, asserts the ghost row is removed and row count returns to the config-set size.
• src/routes/admin_models.rs — doc note: admin runtime add/edit/delete is overridden/cleared on next restart since config is authoritative (persist custom models via config.toml).
• README.md — v0.7.2 changelog entry.
• Cargo.toml / Cargo.lock — version bump 0.7.1 → 0.7.2.

Tests

• cargo test — 125 passed (124 baseline + new sync-delete test)
• cargo clippy — 0 warnings
• cargo fmt — clean