Introduce logger infrastructure and add structured logging to every layer:
alpaca.ts (buy/sell/quote/clock), momentum-indicator.ts (evaluate flow),
momentum-strategy.ts (poll loop), index.ts (startup/cycle), and trading.ts
(market timing). Replace raw console.log calls with leveled logger. Update
all tests with appropriate console spies.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements MomentumIndicator (samples QQQ direction) and
MomentumStrategy (buys TQQQ on up, SQQQ on down, exits at
+1% target or 1hr timeout). Wired into Bot via index.ts.
Also fixes vitest config to exclude dist/ from test discovery.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
