PICK SKY DEL btn: JS-inject after wheel paints so a blank modal carries no DEL action — TDD

Previously the DEL btn was always template-rendered inside .sky-wheel-col, which on a fresh PICK SKY modal (form pristine, schedulePreview not yet fired) put a red DEL btn floating in the empty wheel area suggesting there's something to delete when the user hasn't even seen a wheel yet. Refactored: drop the <button id="id_sky_delete_btn"> from _sky_overlay.html, lazily create it in JS via _ensureDelBtn() called from the schedulePreview success handler (right after SkyWheel.draw/redraw); the existing DEL click handler now also removes the btn from the DOM after clearing the SVG, so the next preview re-injects it. PickSkyRenderingTest.test_no_sky_delete_btn_in_blank_sky_select_modal IT asserts `id="id_sky_delete_btn"` doesn't appear in the rendered HTML for a SKY_SELECT room (the literal identifier still lives inside the inline <script> that does the injection — assertion targets the HTML-attribute-syntax form so the JS reference doesn't trip it). Existing PickSkyDelTest FT still green: it fires preview before clicking DEL, so the btn is present at click time.

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Sonnet 4.6 <noreply@anthropic.com>

src/apps/epic/tests/integrated/test_views.py

@@ -1792,6 +1792,19 @@ class PickSkyRenderingTest(TestCase):
         self.assertContains(response, 'id="id_pick_sky_btn"')
         self.assertContains(response, 'style="display:none"')
 
+    def test_no_sky_delete_btn_in_blank_sky_select_modal(self):
+        """A fresh PICK SKY modal (no preview wheel rendered yet) must not
+        carry the DEL btn — it would otherwise float in the empty wheel area
+        suggesting there's something to delete when the user has only seen
+        the form. The JS schedulePreview success handler is the contract that
+        injects the btn after the wheel paints — so the rendered HTML should
+        carry no <button id="id_sky_delete_btn"> markup. (The literal string
+        does still appear inside the inline <script> that does the injection,
+        so the assertion targets the rendered attribute syntax, not the bare
+        identifier.)"""
+        response = self.client.get(self.url)
+        self.assertNotContains(response, 'id="id_sky_delete_btn"')
+
 
 # ── SEA_SELECT rendering ──────────────────────────────────────────────────────