Switch to postgres for the analysis task queue and some other minor improvements

migrations/2024-09-16-221954_analysis-queue/down.sql

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+-- This file should undo anything in `up.sql`
+DROP TABLE ANALYSIS_QUEUE;

migrations/2024-09-16-221954_analysis-queue/up.sql

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+-- Your SQL goes here
+CREATE TABLE IF NOT EXISTS ANALYSIS_QUEUE (
+  demo_id bigint PRIMARY KEY REFERENCES demos(demo_id),
+  steam_id Text NOT NULL,
+  created_at timestamp NOT NULL default current_timestamp
+);