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@@ -57,3 +57,4 @@ src-tauri/gen/
 .claude/settings.local.json
 .claude/scheduled_tasks.lock
 .claude/worktrees/
+decisions-log.md
diff --git a/decisions-log.md b/decisions-log.md
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-## Issue #155 — fetch_price token loading refactor (MEDIUM)
-The existing `license_commands.rs` token loading lives in `activation_path()` + `fs::read_to_string()` spread across the file — no single public helper reads the activation token. To keep tests clean (avoid touching the file system), the implementation extracts a private `fetch_price_with_token(token, symbol, date)` function and a thin public `fetch_price` wrapper that reads the activation token from disk and delegates. Tests call the inner function directly, injecting a fake token string. This avoids the need for a temp file setup in every test, keeps the coupling minimal, and matches the existing pattern used in `validate_with_key` (pure inner fn + thin Tauri command wrapper).
-
-## Issue #155 — FetchPriceError serialization format (MEDIUM)
-The `Result<PriceResponse, String>` boundary requires serializing `FetchPriceError` to a `String`. Chosen: `serde_json::to_string(&err).unwrap_or("{\"code\":\"internal\"}".to_string())`. This gives the JS layer a stable JSON string it can `JSON.parse()` to read the `code` field and the optional `retry_after_s`. The serde tag `#[serde(tag = "code", rename_all = "snake_case")]` produces `{"code":"auth"}`, `{"code":"rate_limit","retry_after_s":42}` etc. — clean and consistent with the spec's `error.code` shape.
-
-## Issue #155 — MAXIMUS_API_URL env var in tests (MEDIUM)
-`std::env::set_var` is deprecated as unsafe in Rust 1.81+ due to multi-threading concerns. However, the tests use `#[tokio::test]` (each runs in isolation) and the set_var call happens before any HTTP client is built, so the race window is practically zero. The alternative `mockito::Server::new_async()` returns a URL we need to inject; the simplest approach is env var override. We use `unsafe { std::env::set_var(...) }` with an explicit comment explaining the safety rationale. This matches common practice in Rust integration tests with mockito.