fix: resolve remaining CI issues — services, hardhat, Rust, mypy

Service health checks:
- Exchange API uses /api/health not /health — updated test script
  and workflow wait loops to check /api/health as fallback
- Increased wait time to 2s intervals, 15 retries for service readiness
- Performance tests now hit /health endpoints (not root /)

Hardhat compilation:
- aitbc-token was missing peer deps for @nomicfoundation/hardhat-toolbox
- Installed all 11 required peer packages (ethers, typechain, etc.)
- Contracts now compile (19 Solidity files) and all 17 tests pass

Rust workflow:
- Fixed HOME mismatch: gitea-runner HOME=/opt/gitea-runner vs
  euid root HOME=/root — explicitly set HOME=/root in all steps
- Set RUSTUP_HOME and CARGO_HOME for consistent toolchain location

Mypy type annotations (aitbc-agent-sdk):
- agent.py: narrow key types to RSA (isinstance check before sign/verify),
  fix supported_models Optional type, add __post_init__ return type
- compute_provider.py: add return types to all methods, declare
  pricing_model/dynamic_pricing attrs, rename register→create_provider
  to avoid signature conflict with parent, fix Optional safety
- swarm_coordinator.py: add return types to all 8 untyped methods

.gitea/workflows/api-endpoint-tests.yml

@@ -41,14 +41,15 @@ jobs:
         run: |
           echo "Waiting for AITBC services..."
           for port in 8000 8001 8003 8006; do
-            for i in $(seq 1 10); do
-              if curl -sf "http://localhost:$port/" >/dev/null 2>&1 || \
-                 curl -sf "http://localhost:$port/health" >/dev/null 2>&1; then
+            for i in $(seq 1 15); do
+              if curl -sf "http://localhost:$port/health" >/dev/null 2>&1 || \
+                 curl -sf "http://localhost:$port/api/health" >/dev/null 2>&1 || \
+                 curl -sf "http://localhost:$port/" >/dev/null 2>&1; then
                 echo "✅ Port $port ready"
                 break
               fi
-              [ "$i" -eq 10 ] && echo "⚠️ Port $port not ready"
-              sleep 1
+              [ "$i" -eq 15 ] && echo "⚠️ Port $port not ready"
+              sleep 2
             done
           done
 

.gitea/workflows/integration-tests.yml

@@ -56,12 +56,13 @@ jobs:
           for port in 8000 8001 8003 8006; do
             for i in $(seq 1 15); do
               if curl -sf "http://localhost:$port/health" >/dev/null 2>&1 || \
+                 curl -sf "http://localhost:$port/api/health" >/dev/null 2>&1 || \
                  curl -sf "http://localhost:$port/" >/dev/null 2>&1; then
                 echo "✅ Port $port ready"
                 break
               fi
               [ "$i" -eq 15 ] && echo "⚠️ Port $port not ready"
-              sleep 1
+              sleep 2
             done
           done
 

.gitea/workflows/rust-zk-tests.yml

@@ -30,29 +30,41 @@ jobs:
 
       - name: Verify Rust toolchain
         run: |
+          # Fix HOME mismatch (gitea-runner HOME vs euid root)
+          export HOME=/root
+          export RUSTUP_HOME="$HOME/.rustup"
+          export CARGO_HOME="$HOME/.cargo"
+          export PATH="$CARGO_HOME/bin:$PATH"
+
           if ! command -v rustc >/dev/null 2>&1; then
             echo "Installing Rust..."
             curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-            source "$HOME/.cargo/env"
           fi
+          source "$CARGO_HOME/env" 2>/dev/null || true
           rustc --version
           cargo --version
           rustup component add rustfmt clippy 2>/dev/null || true
 
       - name: Check formatting
         run: |
+          export HOME=/root
+          export PATH="$HOME/.cargo/bin:$PATH"
           source "$HOME/.cargo/env" 2>/dev/null || true
           cd /var/lib/aitbc-workspaces/rust-zk-tests/repo/gpu_acceleration/research/gpu_zk_research
           cargo fmt -- --check 2>/dev/null && echo "✅ Formatting OK" || echo "⚠️ Format warnings"
 
       - name: Run Clippy
         run: |
+          export HOME=/root
+          export PATH="$HOME/.cargo/bin:$PATH"
           source "$HOME/.cargo/env" 2>/dev/null || true
           cd /var/lib/aitbc-workspaces/rust-zk-tests/repo/gpu_acceleration/research/gpu_zk_research
           cargo clippy -- -D warnings 2>/dev/null && echo "✅ Clippy OK" || echo "⚠️ Clippy warnings"
 
       - name: Build
         run: |
+          export HOME=/root
+          export PATH="$HOME/.cargo/bin:$PATH"
           source "$HOME/.cargo/env" 2>/dev/null || true
           cd /var/lib/aitbc-workspaces/rust-zk-tests/repo/gpu_acceleration/research/gpu_zk_research
           cargo build --release
@@ -60,6 +72,8 @@ jobs:
 
       - name: Run tests
         run: |
+          export HOME=/root
+          export PATH="$HOME/.cargo/bin:$PATH"
           source "$HOME/.cargo/env" 2>/dev/null || true
           cd /var/lib/aitbc-workspaces/rust-zk-tests/repo/gpu_acceleration/research/gpu_zk_research
           cargo test && echo "✅ Tests passed" || echo "⚠️ Tests completed with issues"