♻️ refactor(port-forward): restructure application organization and optimize docker setup

- consolidate port-forward-agent and port-forward-server into single port-forward directory
- remove old dockerfiles and implement multi-stage docker build for both agent and server
- update docker-compose files to use pre-built images from ghcr.io instead of local builds
- normalize configuration file formatting and line endings
- update data.yml descriptions to remove redundant client/server specifications
- maintain all existing functionality while improving project structure

apps/port-forward/Dockerfile

@@ -0,0 +1,25 @@
+FROM debian:bullseye-slim AS base
+ENV TZ=Asia/Shanghai
+RUN mkdir -p /app/pfg && \
+    apt-get update && apt-get upgrade -y && \
+    apt-get install -y wget unzip tzdata && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+WORKDIR /app/pfg
+
+FROM base AS agent
+RUN wget -O pfg.zip https://gitee.com/tavenli/port-forward/releases/download/v1.3.7/forward-agent.linux64.v1.3.7.zip && \
+    unzip pfg.zip && \
+    rm -rf pfg.zip && \
+    chmod +x /app/pfg/forward-agent/forward-agent
+WORKDIR /app/pfg/forward-agent
+CMD ["./forward-agent"]
+
+FROM base AS server
+RUN wget -O pfg.zip https://gitee.com/tavenli/port-forward/releases/download/v1.3.7/forward-server.linux64.v1.3.7.zip && \
+    unzip pfg.zip && \
+    rm -rf pfg.zip && \
+    chmod +x /app/pfg/forward-server/start.sh && \
+    chmod +x /app/pfg/forward-server/forward-server
+WORKDIR /app/pfg/forward-server
+CMD ["./forward-server"]