feat: add user_id index to profiles table for faster lookups

The profiles table previously lacked an index on the user_id column, causing full table scans during user lookups. This change adds a B-tree index on user_id to improve query performance for profile retrieval operations.

Makefile

@@ -7,6 +7,9 @@ LOCUST_SPAWN_RATE ?= 5
 LOCUST_RUN_TIME ?= 120s
 DEVPLACE_RATE_LIMIT ?= 1000000
 
+PYTHONDONTWRITEBYTECODE := 1
+export PYTHONDONTWRITEBYTECODE
+
 .PHONY: install dev clean test test-headed coverage coverage-headed coverage-html locust locust-headless
 
 install:
@@ -18,6 +21,9 @@ dev:
 prod:
 	DEVPLACE_WEB_WORKERS=2 uvicorn devplacepy.main:app --host 0.0.0.0 --port 10500 --workers 2 --backlog 8192 --proxy-headers --forwarded-allow-ips '*'
 
+tree:
+	git ls-tree --name-only -r -t HEAD | sort | awk -F/ '{for(i=1;i<NF;i++) printf "  "; print $$NF}'
+
 test:
 	PLAYWRIGHT_HEADLESS=1 python -m pytest tests/ -x