feat(api): add /auth/whoami endpoint and build automation

Dockerfile

@@ -1,12 +1,17 @@
 FROM golang:1.24-alpine AS builder
 
+# Install make for Makefile support
+RUN apk add --no-cache make
+
 WORKDIR /app
 
 COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
-RUN go build -o ez-api ./cmd/server
+
+# Use Makefile to generate swagger and build
+RUN make build
 
 FROM alpine:latest