dev cicd + tron + docs

ci/dev/ledger.dockerfile

@@ -0,0 +1,39 @@
+# Development Dockerfile for Ledger Service with Air hot reload
+
+FROM golang:alpine AS builder
+
+# Install build dependencies
+RUN apk add --no-cache bash git build-base protoc protobuf-dev && \
+    go install google.golang.org/protobuf/cmd/protoc-gen-go@latest && \
+    go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest && \
+    go install github.com/air-verse/air@latest
+
+WORKDIR /src
+
+# Copy proto and pkg first (changes less frequently)
+COPY api/proto ./api/proto
+COPY api/pkg ./api/pkg
+COPY ci/scripts/proto/generate.sh ./ci/scripts/proto/
+
+# Generate protos (cached if proto files unchanged)
+RUN bash ci/scripts/proto/generate.sh
+
+# Runtime stage for development with Air
+FROM golang:alpine
+
+RUN apk add --no-cache bash git build-base && \
+    go install github.com/air-verse/air@latest
+
+WORKDIR /src
+
+# Copy generated proto and pkg from builder
+COPY --from=builder /src/api/proto ./api/proto
+COPY --from=builder /src/api/pkg ./api/pkg
+
+# Source code will be mounted at runtime to /src/api/ledger
+WORKDIR /src/api/ledger
+
+EXPOSE 50052 9401
+
+# Use Air for hot reload
+CMD ["air", "-c", ".air.toml", "--", "-config.file", "/app/config.yml", "-debug"]