fix(lint): change Python job runner from Windows to Linux and update shell to Bash

fix(script): add CmdletBinding attribute to Set-GuestInfoIP function for better process support

.gitea/workflows/lint.yml

@@ -64,17 +64,12 @@ jobs:
           }
 
   python:
-    runs-on: windows-build
+    runs-on: linux-build
     timeout-minutes: 20
 
     env:
       PYTHONIOENCODING: utf-8
-      # Job-local, ephemeral venv. MUST NOT be the production venv
-      # (F:\CI\python\venv): an editable install here would repoint the
-      # shared orchestrator package at this run's transient checkout and
-      # break every later smoke/build job with "No module named
-      # ci_orchestrator". github.workspace is discarded after the job.
-      VENV_DIR: ${{ github.workspace }}\.venv-lint
+      VENV_DIR: ${{ github.workspace }}/.venv-lint
 
     steps:
       - name: Checkout
@@ -83,57 +78,25 @@ jobs:
           fetch-depth: 1
 
       - name: Setup venv + install package
-        shell: powershell
+        shell: bash
         run: |
-          $ErrorActionPreference = 'Stop'
-
-          # Production venv lives at $env:VENV_DIR (F:\CI\python\venv per AGENTS.md).
-          # The system Python used to bootstrap it is configured once in
-          # runner/config.yaml as CI_PYTHON_LAUNCHER (single source of truth).
-          if (-not $env:CI_PYTHON_LAUNCHER) {
-            throw "CI_PYTHON_LAUNCHER not set. Configure it in runner/config.yaml (runner.envs) and restart act_runner."
-          }
-          if (-not (Test-Path $env:CI_PYTHON_LAUNCHER)) {
-            throw "CI_PYTHON_LAUNCHER points to '$env:CI_PYTHON_LAUNCHER' which does not exist."
-          }
-
-          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
-
-          # Always build a fresh, job-local venv. Never reuse or repair a
-          # shared one — lint must be fully isolated from the production
-          # orchestrator venv.
-          if (Test-Path $env:VENV_DIR) {
-            Remove-Item $env:VENV_DIR -Recurse -Force
-          }
-          & $env:CI_PYTHON_LAUNCHER -m venv $env:VENV_DIR
-          if ($LASTEXITCODE -ne 0) { throw "venv creation failed" }
-
-          Write-Host "Using venv python: $venvPy"
-          & $venvPy --version
-          if ($LASTEXITCODE -ne 0) { throw "python --version failed" }
-
-          & $venvPy -m pip install --upgrade pip
-          if ($LASTEXITCODE -ne 0) { throw "pip upgrade failed" }
-          & $venvPy -m pip install -e ".[dev]"
-          if ($LASTEXITCODE -ne 0) { throw "pip install failed" }
+          set -euo pipefail
+          rm -rf "$VENV_DIR"
+          python3 -m venv "$VENV_DIR"
+          "$VENV_DIR/bin/python" -m pip install --upgrade pip
+          "$VENV_DIR/bin/python" -m pip install -e ".[dev]"
 
       - name: ruff
-        shell: powershell
+        shell: bash
         run: |
-          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
-          & $venvPy -m ruff check src tests/python
-          if ($LASTEXITCODE -ne 0) { throw "ruff failed" }
+          "$VENV_DIR/bin/python" -m ruff check src tests/python
 
       - name: mypy --strict
-        shell: powershell
+        shell: bash
         run: |
-          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
-          & $venvPy -m mypy --strict src
-          if ($LASTEXITCODE -ne 0) { throw "mypy failed" }
+          "$VENV_DIR/bin/python" -m mypy --strict src
 
       - name: pytest (coverage >= 90%)
-        shell: powershell
+        shell: bash
         run: |
-          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
-          & $venvPy -m pytest tests/python --cov=ci_orchestrator --cov-fail-under=90
-          if ($LASTEXITCODE -ne 0) { throw "pytest failed" }
+          "$VENV_DIR/bin/python" -m pytest tests/python --cov=ci_orchestrator --cov-fail-under=90