refactor: consolidate _no_path file send variants

Add bool send_path parameter to file_send_single_calls and
file_send_sendfile, remove the _no_path variants. Callers in
client_send.c pass true (send path) or false (skip path) based
on whether an incremental check already transmitted the path.

.gitea/workflows/ci.yaml

@@ -0,0 +1,23 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    container: gitea.tap-tap.win/taptap/fastsync-ci:v4
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Configure
+        run: cmake -B build -S .
+
+      - name: Build
+        run: cmake --build build -j$(nproc)
+
+      - name: Unit Tests
+        run: ./build/tests
+
+      - name: Integration Tests
+        run: python3 test.py

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 4.1)
+cmake_minimum_required(VERSION 3.22)
 
 project(FastFileTransfer)
 

Dockerfile

@@ -0,0 +1,6 @@
+FROM ubuntu:24.04
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc g++ make libc6-dev cmake libzstd-dev git ca-certificates curl && \
+    curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
+    apt-get install -y --no-install-recommends nodejs && \
+    rm -rf /var/lib/apt/lists/*

shell.nix

@@ -8,6 +8,7 @@ pkgs.mkShell {
     cmake
     gnumake
     pkg-config
+    docker
     tea
   ];