fix(deploy): server测试用项目venv解释器——系统Python无django导致首验即停

Co-Authored-By: Claude Code <noreply@anthropic.com>

deploy/deploy.sh

@@ -58,10 +58,17 @@ preflight() {
 }
 
 # ---- 各目标实现 ----
+# server 测试解释器：优先项目 venv（Windows Scripts/ 或 Linux bin/ 布局），退化到 PATH python
+server_py() {
+  if [ -x "$REPO_DIR/server/.venv/Scripts/python.exe" ]; then echo "$REPO_DIR/server/.venv/Scripts/python.exe"
+  elif [ -x "$REPO_DIR/server/.venv/bin/python" ]; then echo "$REPO_DIR/server/.venv/bin/python"
+  else echo python; fi
+}
 server_tests() {
   [ "$SKIP_TESTS" -eq 1 ] && return 0
   STEP="server 测试"
-  (cd "$REPO_DIR/server" && python -m pytest tracker/tests/ -q >>"$LOG_FILE" 2>&1) \
+  local py; py="$(server_py)"
+  (cd "$REPO_DIR/server" && "$py" -m pytest tracker/tests/ -q >>"$LOG_FILE" 2>&1) \
     || die "pytest 未全过（详见 $LOG_FILE）"
   ok "pytest 全过"
 }