timlawrenz/qq-system

AI Summary: This issue involves creating a new `Analysis` ActiveRecord model and its corresponding database migration. The `analyses` table will store details of a performance analysis run, including a foreign key to an `Algorithm`, start/end dates, a `status` (managed by a state machine), and `jsonb` results. It depends on the `Algorithm` model being created first.

AI Summary: This issue requires creating a `Trade` model and its corresponding database migration. The `trades` table will store individual trade details, including a foreign key to an `Algorithm` model, symbol, execution time, side, quantity, and price. The model and migration must adhere to linter checks.