feat(llm-api): add CI/CD, Dockerfile, compose, Traefik routing

- infra/docker/llm-api.Dockerfile — multi-stage Rust build with cargo-chef
- infra/compose/llm-api.yml — service with model volume mount & healthcheck
- infra/traefik/dynamic/apps.yaml — router for ai.asepharyana.my.id
- CI: build-push workflow detects llm-api changes, builds image
- CD: deploy workflow includes llm-api.yml in compose stack

infra/compose/llm-api.yml

@@ -0,0 +1,28 @@
+services:
+  llm-api:
+    container_name: llm-api
+    image: ghcr.io/asepharyana/asepharyana-hub/llm-api:latest
+    restart: always
+    networks:
+      app-shared-net:
+        aliases:
+          - llm-api
+    volumes:
+      - /root/models/gguf:/root/models/gguf:ro
+    environment:
+      - MODEL_PATH=/root/models/gguf/MiniCPM-V-4.6-Q4_K_M.gguf
+    healthcheck:
+      test: ['CMD-SHELL', 'curl -so /dev/null --connect-timeout 5 http://localhost:8080/health || test $? -eq 22']
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    labels:
+      prometheus.io/scrape: "true"
+      prometheus.io/port: "8080"
+      prometheus.io/path: "/metrics"
+
+networks:
+  app-shared-net:
+    name: app-shared-net
+    external: true

infra/docker/llm-api.Dockerfile

@@ -0,0 +1,45 @@
+# ── Build stage: cargo-chef ──
+FROM lukemathwalker/cargo-chef:latest-rust-1.89.0 AS chef
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libclang-dev cmake \
+    && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+
+FROM chef AS planner
+COPY apps/llm-api .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM chef AS builder
+COPY --from=planner /app/recipe.json recipe.json
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/app/target \
+    cargo chef cook --release --recipe-path recipe.json
+
+COPY apps/llm-api .
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/app/target \
+    cargo build --release && \
+    cp target/release/llm-api /app/llm-api
+
+# ── Runtime image ──
+FROM debian:bookworm-slim AS runtime
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    libssl3 \
+    libgomp1 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN groupadd -g 1001 appgroup && \
+    useradd -u 1001 -g appgroup -s /bin/sh appuser
+
+WORKDIR /app
+COPY --from=builder /app/llm-api /app/llm-api
+
+# Model will be mounted at runtime
+RUN mkdir -p /root/models/gguf && chown -R appuser:appgroup /root/models/gguf
+
+USER appuser
+
+EXPOSE 8080
+CMD ["./llm-api"]

infra/traefik/dynamic/apps.yaml

@@ -42,6 +42,14 @@ http:
       rule: Host(`auth.asepharyana.my.id`) || Host(`auth.asepharyana.web.id`)
       service: rust-auth-service
       tls: {}
+    llm-api:
+      entryPoints:
+      - websecure
+      middlewares:
+      - common-chain@file
+      rule: Host(`ai.asepharyana.my.id`) || Host(`ai.asepharyana.web.id`)
+      service: llm-api-service
+      tls: {}
     scraper:
       entryPoints:
       - websecure
@@ -76,6 +84,10 @@ http:
       loadBalancer:
         servers:
         - url: http://rust-auth:3000
+    llm-api-service:
+      loadBalancer:
+        servers:
+        - url: http://llm-api:8080
     scraper-service:
       loadBalancer:
         servers: