Changeset 0.22.0.1 (#94)

server/database/migrations/013_v0220_health.sql

@@ -0,0 +1,43 @@
+-- v0.22.0: Provider health tracking + capability admin overrides.
+
+-- ── Provider Health ─────────────────────────
+-- Hourly bucketed health metrics per provider config.
+-- In-memory accumulator flushes to this table every 60s.
+-- Background job prunes rows older than 7 days.
+CREATE TABLE IF NOT EXISTS provider_health (
+    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    provider_config_id  UUID NOT NULL REFERENCES provider_configs(id) ON DELETE CASCADE,
+    window_start        TIMESTAMPTZ NOT NULL,  -- hourly bucket floor
+    request_count       INT NOT NULL DEFAULT 0,
+    error_count         INT NOT NULL DEFAULT 0,
+    timeout_count       INT NOT NULL DEFAULT 0,
+    total_latency_ms    BIGINT NOT NULL DEFAULT 0,   -- sum for avg calculation
+    max_latency_ms      INT NOT NULL DEFAULT 0,
+    last_error          TEXT,
+    last_error_at       TIMESTAMPTZ,
+    updated_at          TIMESTAMPTZ NOT NULL DEFAULT now(),
+
+    UNIQUE (provider_config_id, window_start)
+);
+
+CREATE INDEX IF NOT EXISTS idx_provider_health_window
+    ON provider_health (provider_config_id, window_start DESC);
+
+-- ── Capability Overrides ────────────────────
+-- Admin corrections for model capabilities.  Highest priority in the
+-- three-tier resolution chain: catalog → heuristic → admin override.
+CREATE TABLE IF NOT EXISTS capability_overrides (
+    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    provider_config_id  UUID REFERENCES provider_configs(id) ON DELETE CASCADE,
+    model_id            TEXT NOT NULL,
+    field               TEXT NOT NULL,   -- tool_calling, vision, thinking, reasoning, etc.
+    value               TEXT NOT NULL,   -- "true"/"false" for bools, numeric string for ints
+    set_by              UUID REFERENCES users(id) ON DELETE SET NULL,
+    created_at          TIMESTAMPTZ NOT NULL DEFAULT now(),
+
+    -- Unique per (provider, model, field).  NULL provider = applies to model globally.
+    UNIQUE (provider_config_id, model_id, field)
+);
+
+CREATE INDEX IF NOT EXISTS idx_capability_overrides_model
+    ON capability_overrides (model_id);