core/cli: keep database url :memory:; default url None

Unset/empty url still maps to durable user-data chat.db.
Explicit :memory: is not rewritten; CLI warns when not quiet.
DatabaseConfig.url default is None; engine treats None as memory.
This commit is contained in:
2026-07-19 21:38:21 +08:00
parent 182546d60e
commit 0ec0d542e8
8 changed files with 123 additions and 13 deletions
+1 -1
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@@ -140,7 +140,7 @@ max_context_tokens = 200000
Supported provider presets today: `openai` (default if `preset` is omitted; default models `gpt-5.4` / `gpt-5.4-mini` / `gpt-5.4-nano` when `models` is omitted), `openai-compatible`, `deepseek` (OpenAI convention; default models `deepseek-v4-flash` and `deepseek-v4-pro` if `models` is omitted). Anthropic presets are modeled in config but not wired in the runtime client yet.
If `[database]` is omitted (or SQLite `url` is empty/`":memory:"`), chat uses a durable file under the user data dir (e.g. `~/.local/share/plyngent/chat.db` on Linux).
If `[database]` is omitted (or SQLite `url` is unset/empty), chat uses a durable file under the user data dir (e.g. `~/.local/share/plyngent/chat.db` on Linux). Set `url = ":memory:"` for a true in-memory SQLite (CLI warns; no file; useful for tests).
## Chat