test(09-03): add failing .ps1 route and detail-page link tests

- Create tests/test_script_download.py with 5 tests for .ps1 routes (install/uninstall/detect, 404, 422)
- Add test_detail_page_shows_script_links to TestCommandPreview in tests/test_packages.py
- All 6 new tests go RED (routes and template links do not exist yet)

tests/test_packages.py

@@ -190,6 +190,16 @@ class TestCommandPreview:
         assert f"/printers/{printer.id}/icon" in html
         assert "icon-status" in html
 
+    def test_detail_page_shows_script_links(self, client, setup_printer_with_driver):
+        """Printer detail page shows 3 direct .ps1 script download links when driver assigned."""
+        printer, _ = setup_printer_with_driver
+        resp = client.get(f"/printers/{printer.id}")
+        assert resp.status_code == 200
+        html = resp.text
+        assert f"/printers/{printer.id}/scripts/install.ps1" in html
+        assert f"/printers/{printer.id}/scripts/uninstall.ps1" in html
+        assert f"/printers/{printer.id}/scripts/detect.ps1" in html
+
 
 # ---------------------------------------------------------------------------
 # Icon inclusion in .intunewin export

tests/test_script_download.py

@@ -0,0 +1,120 @@
+"""Integration tests for the .ps1-suffixed script download routes."""
+import io
+import json
+import zipfile
+
+import pytest
+
+
+# ---------------------------------------------------------------------------
+# Fixtures (same pattern as tests/test_packages.py)
+# ---------------------------------------------------------------------------
+
+
+@pytest.fixture
+def driver_zip_bytes():
+    """Create a minimal valid driver ZIP with a fake INF and CAT file."""
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w", compression=zipfile.ZIP_DEFLATED) as zf:
+        zf.writestr("printer.inf", "[Version]\nSignature=$WINDOWS NT$\n")
+        zf.writestr("printer.cat", "FAKE_CAT")
+    return buf.getvalue()
+
+
+@pytest.fixture
+def setup_printer_with_driver(tmp_data_dir, driver_zip_bytes):
+    """Create Driver record (with ZIP on disk) and Printer record linked to it."""
+    import hashlib
+    import os
+
+    import imptune.config as cfg
+    from imptune.db.models import Driver, Printer
+
+    sha = hashlib.sha256(driver_zip_bytes).hexdigest()
+    drivers_dir = cfg.DRIVERS_DIR
+    os.makedirs(drivers_dir, exist_ok=True)
+    zip_path = os.path.join(drivers_dir, f"{sha}.zip")
+    with open(zip_path, "wb") as f:
+        f.write(driver_zip_bytes)
+
+    driver = Driver.create(
+        sha256=sha,
+        original_filename="printer_driver.zip",
+        size_bytes=len(driver_zip_bytes),
+        driver_desc=json.dumps(["HP LaserJet Pro"]),
+        inf_filename="printer.inf",
+    )
+    printer = Printer.create(
+        name="Test Printer",
+        ip_address="192.168.1.100",
+        port_name="IP_192.168.1.100",
+        driver=driver,
+        duplex_mode="OneSided",
+        color_mode=True,
+        paper_size="A4",
+        collate=True,
+    )
+    return printer, driver
+
+
+@pytest.fixture
+def printer_no_driver(tmp_data_dir):
+    """Create Printer record with no driver assigned."""
+    from imptune.db.models import Printer
+
+    return Printer.create(
+        name="No Driver Printer",
+        ip_address="10.0.0.1",
+        port_name="IP_10.0.0.1",
+        driver=None,
+    )
+
+
+# ---------------------------------------------------------------------------
+# .ps1 route tests
+# ---------------------------------------------------------------------------
+
+
+class TestPs1Routes:
+    def test_install_ps1_route(self, client, setup_printer_with_driver):
+        """GET /printers/{id}/scripts/install.ps1 returns 200 with attachment and PowerShell content."""
+        printer, _ = setup_printer_with_driver
+        resp = client.get(f"/printers/{printer.id}/scripts/install.ps1")
+        assert resp.status_code == 200
+        assert 'attachment' in resp.headers["content-disposition"]
+        assert 'filename="install.ps1"' in resp.headers["content-disposition"]
+        body = resp.text
+        assert len(body) > 0
+        assert "Add-Printer" in body or "$PSScriptRoot" in body
+
+    def test_uninstall_ps1_route(self, client, setup_printer_with_driver):
+        """GET /printers/{id}/scripts/uninstall.ps1 returns 200 with attachment and uninstall content."""
+        printer, _ = setup_printer_with_driver
+        resp = client.get(f"/printers/{printer.id}/scripts/uninstall.ps1")
+        assert resp.status_code == 200
+        assert 'attachment' in resp.headers["content-disposition"]
+        assert 'filename="uninstall.ps1"' in resp.headers["content-disposition"]
+        body = resp.text
+        assert len(body) > 0
+        assert "Remove-Printer" in body
+
+    def test_detect_ps1_route(self, client, setup_printer_with_driver):
+        """GET /printers/{id}/scripts/detect.ps1 returns 200 with attachment and detect content."""
+        printer, _ = setup_printer_with_driver
+        resp = client.get(f"/printers/{printer.id}/scripts/detect.ps1")
+        assert resp.status_code == 200
+        assert 'attachment' in resp.headers["content-disposition"]
+        assert 'filename="detect.ps1"' in resp.headers["content-disposition"]
+        body = resp.text
+        assert len(body) > 0
+        assert "Get-Printer" in body
+
+    def test_ps1_routes_missing_printer(self, client, tmp_data_dir):
+        """GET for non-existent printer returns 404."""
+        resp = client.get("/printers/99999/scripts/install.ps1")
+        assert resp.status_code == 404
+
+    def test_ps1_routes_no_driver(self, client, printer_no_driver):
+        """GET for printer without driver returns 422."""
+        resp = client.get(f"/printers/{printer_no_driver.id}/scripts/install.ps1")
+        assert resp.status_code == 422