🚀 Wave 127 Wave 1: Foundation Fixes (4 agents)

**Mission**: Close gap between Wave 126 "theoretical 100%" and operational readiness

**Agent 118: Database Schema** ✅
- Created migration 020_create_executions_table.sql
- Added executions table with 9 columns, 5 indexes
- Foreign key to orders table with CASCADE
- UNBLOCKED load testing (Agent 123)

**Agent 119: GPU Docker Configuration** ✅ (USER PRIORITY)
- Updated docker-compose.yml with NVIDIA runtime
- Configured GPU environment variables for ML service
- Verified RTX 3050 Ti accessible (nvidia-smi working)
- CUDA 13.0 enabled in container
- SATISFIED user requirement: "Ensure GPU is working in docker"

**Agent 120: Prometheus HTTP Exporters** ⚠️ PARTIAL
- Added Prometheus dependencies to all 4 services
- Implemented /metrics endpoints with Axum HTTP servers
- Services compiled and running healthy
- ISSUE: HTTP endpoints not responding (needs investigation)

**Agent 121: Test Fixes** ⚠️ PARTIAL
- Fixed timing test in trading_engine (TSC availability check)
- Trading engine: 100% pass rate (298/298)
- NEW ISSUE: PPO continuous policy test failing (log probabilities)
- Overall: 99.83% pass rate (574/575 in ml crate)

**Wave 1 Results**:
- Critical path: ✅ Database schema unblocked load testing
- User requirement: ✅ GPU working in Docker
- Monitoring: ❌ Prometheus needs fix
- Testing: ⚠️ 99.83% pass rate (1 new failure)

**Files Modified** (11):
- migrations/020_create_executions_table.sql (new)
- docker-compose.yml (GPU runtime)
- services/*/src/main.rs (4 files - Prometheus exporters)
- services/*/Cargo.toml (3 files - dependencies)
- trading_engine/src/timing.rs (test fix)

**Next**: Wave 2 - Execution Validation (6 agents)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Cargo.lock

@@ -1531,6 +1531,7 @@ dependencies = [
  "model_loader",
  "num-traits",
  "num_cpus",
+ "prometheus",
  "prost 0.14.1",
  "prost-build 0.14.1",
  "rand 0.8.5",
@@ -5491,6 +5492,7 @@ dependencies = [
  "num_cpus",
  "object_store",
  "pbkdf2",
+ "prometheus",
  "prost 0.14.1",
  "prost-build 0.14.1",
  "prost-types 0.14.1",
@@ -9844,6 +9846,7 @@ dependencies = [
  "api_gateway",
  "async-stream",
  "async-trait",
+ "axum 0.7.9",
  "base32",
  "base64 0.22.1",
  "bytes",