Implements the quota share enforcement gate and consumption recorder:
- enforceQuotaShare(): PRE-request check that returns allow/block/deprioritize
based on fair-share algorithm, saturation signals, and pool allocations.
- recordConsumption(): POST-response tracker that increments per-key counters
for each active plan dimension.
Both functions fail-open per B16/B29: any infra error → allow + warn log.
Three new test files:
- sidebar-monitoring-reorg.test.ts: asserts monitoring has 4 children (activity item + logs/audit/system groups), no costs-parameters group, no logs-activity in items
- sidebar-costs-section.test.ts: asserts costs section exists with 4 items in correct order, costs removed from analytics, costs positioned between analytics and monitoring
- sidebar-back-compat.test.ts: asserts activity added + logs-activity preserved in HIDEABLE_SIDEBAR_ITEM_IDS, admin preset shows activity and hides logs-activity (B30)
- MONITORING_ITEMS reduced to single `activity` item at `/dashboard/activity`
- New LOGS_GROUP (logs/logs-proxy/logs-console) extracted from flat monitoring items
- New SYSTEM_GROUP (health/runtime) extracted from flat monitoring items
- AUDIT_GROUP preserved unchanged
- Monitoring section children: [...MONITORING_ITEMS, LOGS_GROUP, AUDIT_GROUP, SYSTEM_GROUP]
- COSTS_PARAMS_GROUP removed from monitoring section (items migrate to COSTS_ITEMS)
- `activity` added to HIDEABLE_SIDEBAR_ITEM_IDS; `logs-activity` preserved for back-compat (B11)
- Updated existing sidebar-visibility.test.ts to match new monitoring item structure
Adds QUOTA_STORE_DRIVER, QUOTA_STORE_REDIS_URL,
QUOTA_SATURATION_THRESHOLD, QUOTA_SOFT_DEPRIORITIZE_FACTOR, and
QUOTA_CONSUMPTION_RETENTION_DAYS as per §3.8 of master-plan-group-B.
Adds re-export blocks for quotaPools (7 functions), quotaConsumption
(4 functions with gcQuotaConsumption alias), and providerPlans (4
functions with getProviderPlan/listProviderPlans/etc. aliases).
Zero logic added to localDb.ts — Hard Rule #2 maintained.
Implements getPlan, listPlans, upsertPlan (idempotent ON CONFLICT DO
UPDATE), and deletePlan. Serializes QuotaDimension[] as JSON into
dimensions_json column and parses back on read. Malformed JSON returns
empty dimensions rather than throwing.
Implements listPools, getPool, createPool, updatePool, deletePool,
upsertAllocations (replace strategy via transaction), and
listAllocationsForApiKey. All SQL uses prepared statements. Local type
shapes aligned with src/lib/quota/dimensions.ts contract (B13).
Creates migrations 073 (quota_pools + quota_allocations) and 074
(quota_consumption sliding-window counter). Both are idempotent via
CREATE TABLE IF NOT EXISTS and CREATE INDEX IF NOT EXISTS. FK ON DELETE
CASCADE from quota_allocations to quota_pools. Fixes B2 IDs.
