- New BudgetHandler with GetBudget and PatchBudget methods
- GET returns budget_limit (null or int64 USD cents), monthly_spend,
and computed budget_remaining (null when no limit, can be negative
when over-budget so callers can see the magnitude of the overage)
- PATCH accepts {budget_limit: int64|null}; null clears the ceiling;
validates non-negative values; re-reads DB to echo final state
- Both handlers are wired in router.go under the WorkspaceAuth group
- 14 unit tests covering happy paths, 404, 400 validation, DB errors,
over-budget state, zero limit, and clear-limit round-trip
- All 20 packages pass go test ./... and go build ./... is clean
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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