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

@@ -1,23 +0,0 @@
-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 3.22)
+cmake_minimum_required(VERSION 4.1)
 
 project(FastFileTransfer)
 

Dockerfile

@@ -1,6 +0,0 @@
-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

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