Finish autoscaling diagnostics and document pilot rollout

src/lib/server/autoscaling/schema.ts

@@ -22,6 +22,7 @@ export function ensureAutoscalingSchema(handle: Database.Database): void {
         );
         CREATE UNIQUE INDEX IF NOT EXISTS autoscaling_one_intent ON autoscaling_decisions(policy_id) WHERE resolved=0;
         CREATE INDEX IF NOT EXISTS autoscaling_history ON autoscaling_decisions(policy_id,evaluated_at DESC);
+        CREATE INDEX IF NOT EXISTS autoscaling_decision_retention ON autoscaling_decisions(last_seen_at) WHERE resolved=1;
         CREATE TABLE IF NOT EXISTS autoscaling_samples (
             policy_id TEXT NOT NULL REFERENCES autoscaling_policies(id), sampled_at INTEGER NOT NULL,
             mode TEXT NOT NULL, occupied INTEGER NOT NULL, empty INTEGER NOT NULL, unknown INTEGER NOT NULL,
@@ -31,5 +32,6 @@ export function ensureAutoscalingSchema(handle: Database.Database): void {
             operation_id TEXT PRIMARY KEY, policy_id TEXT NOT NULL, revision INTEGER NOT NULL,
             expires_at INTEGER NOT NULL, claimed_at INTEGER, revoked_at INTEGER
         );
+        CREATE INDEX IF NOT EXISTS autoscaling_sample_retention ON autoscaling_samples(sampled_at);
     `);
 }