perf: optimize proxy streaming and database access

migrations_pg/20260606000002_performance_projections.sql

@@ -0,0 +1,45 @@
+-- Performance-oriented projections and indexes for logs/workspace views.
+
+CREATE INDEX IF NOT EXISTS proxy_logs_key_created_status_idx
+    ON proxy_logs (downstream_api_key_id, created_at DESC, status);
+
+CREATE INDEX IF NOT EXISTS proxy_logs_key_model_created_idx
+    ON proxy_logs (downstream_api_key_id, model_actual, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS proxy_logs_content_summary_idx
+    ON proxy_logs (content_summary);
+
+CREATE INDEX IF NOT EXISTS workspace_assets_user_output_created_idx
+    ON workspace_assets (
+        user_id,
+        status,
+        deleted_at,
+        source,
+        kind,
+        created_at DESC
+    );
+
+CREATE INDEX IF NOT EXISTS workspace_assets_output_role_created_idx
+    ON workspace_assets (((metadata::jsonb #>> '{workspaceAsset,role}')), created_at DESC);
+
+CREATE INDEX IF NOT EXISTS workspace_assets_workflow_output_created_idx
+    ON workspace_assets (((metadata::jsonb #>> '{workflowUi,type}')), created_at DESC);
+
+CREATE TABLE IF NOT EXISTS workspace_asset_daily (
+    local_day TEXT NOT NULL,
+    user_id BIGINT NOT NULL DEFAULT 0,
+    source TEXT NOT NULL,
+    kind TEXT NOT NULL,
+    asset_count BIGINT NOT NULL DEFAULT 0,
+    local_file_count BIGINT NOT NULL DEFAULT 0,
+    total_size_bytes BIGINT NOT NULL DEFAULT 0,
+    created_at TEXT DEFAULT (CURRENT_TIMESTAMP::TEXT),
+    updated_at TEXT DEFAULT (CURRENT_TIMESTAMP::TEXT),
+    UNIQUE(local_day, user_id, source, kind)
+);
+
+CREATE INDEX IF NOT EXISTS workspace_asset_daily_user_day_idx
+    ON workspace_asset_daily (user_id, local_day DESC);
+
+CREATE INDEX IF NOT EXISTS workspace_asset_daily_source_day_idx
+    ON workspace_asset_daily (source, local_day DESC);