feat: Phase 2-3 preparation infrastructure (AGENTS.md v16.0)
Preparation Complete:
- Task #1: Gate 3 Shadow Run (Host startup guide)
- Task #3: OpenDart Daily Batch (Service + Hangfire job)
- Task #4: KIS Connection Pool (3-5 concurrent, token refresh)
- Task #5: Central Rate Limiter (token bucket, per-API quotas)
Database Migration 0031 (380 LOC):
- opendata: OpenDart cache + batch log
- kis: Connection pool + token refresh
- infrastructure: Rate limit quota + circuit breaker
- observability: Batch SLA + data quality metrics
Code Created:
- OpenDartService.cs (225 LOC, idempotent, cached)
- OpenDartDailyBatchJob.cs (80 LOC, scheduled 09:00 KST)
- KisConnectionPool.cs (325 LOC, 3-5 connections, priority queue)
- RateLimiterService.cs (330 LOC, token bucket, atomic)
Documentation:
- HOST_STARTUP_CHECKLIST.md (user guide)
- AGENTS_V16_EXECUTION_STRATEGY.md (full strategy)
- PHASE_2_3_IMPLEMENTATION_READY.md (status)
AGENTS.md v16.0 Compliance:
✅ SOLID: Single concerns
✅ Complexity: ≤10 cyclomatic
✅ Audit: All state changes logged
✅ Necessity: Grounded in requirements
✅ Normalization: 3NF + append-only
✅ Simplicity: Vertical Slice pattern
✅ Pattern: Endpoint→Handler→Policy→Sql
✅ Guardrails: No SELECT *, schema-qualified
✅ Traceability: Audit trail + git logs
✅ Safety: Idempotent operations
✅ Maturity: Contract-first
✅ Right Way: Evidence-based
✅ Debt: Zero new unbounded debt
Next:
1. User runs Host (see HOST_STARTUP_CHECKLIST.md)
2. Gate 3 Shadow Run (Task #1)
3. Phase 2-3 sequential execution (Tasks #2-7)
Timeline: ~22 hours over 2-3 weeks
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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