fix venv

scripts/build-linux.sh

@@ -15,6 +15,9 @@ done
 REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
 cd "$REPO_ROOT"
 
+uv venv --python 3.13
+source .venv/bin/activate
+
 if [ -d ".venv/bin" ]; then
     PYTHON=".venv/bin/python"
 else

scripts/build-mac.sh

@@ -15,6 +15,9 @@ done
 REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
 cd "$REPO_ROOT"
 
+uv venv --python 3.13
+source .venv/bin/activate
+
 if [ -d ".venv/bin" ]; then
     PYTHON=".venv/bin/python"
 else

scripts/build-windows.ps1

@@ -30,6 +30,9 @@ function Assert-LastExitCode {
 $repoRoot = Split-Path -Parent $PSScriptRoot
 Set-Location $repoRoot
 
+uv venv --python 3.13
+./.venv/Scripts/Activate
+
 $pythonExe = if (Test-Path ".\.venv\Scripts\python.exe") {
     ".\.venv\Scripts\python.exe"
 } else {