rename: Note→Post/Line (dashboard); Recognition→Note (drama); new-post/my-posts to billboard

- dashboard: Note→Post, Item→Line across models, forms, views, API, urls & tests
- new-post (9×3) & my-posts (3×3) applets migrate from dashboard→billboard context; billboard view passes form & recent_posts
- drama: Recognition→Note, related_name notes; billboard URL /recognition/→/my-notes/, set-palette at /note/<slug>/set-palette
- recognition.js→note.js (module Note, data.note key); recognition-page.js→note-page.js; .recog-*→.note-*
- _recognition.scss→_note.scss; BillNotes page header; applet slug billboard-recognition→billboard-notes (My Notes)
- NoteSpec.js replaces RecognitionSpec.js; test_recognition.py→test_applet_my_notes.py
- 4 migrations applied: dashboard 0004, applets 0011+0012, drama 0005; 683 ITs green

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/functional_tests/test_applet_new_post.py

@@ -0,0 +1,63 @@
+from selenium.webdriver.common.by import By
+from selenium.webdriver.common.keys import Keys
+
+from .base import FunctionalTest
+from .post_page import PostPage
+
+
+class NewVisitorTest(FunctionalTest):
+    # Test methods
+    def test_can_start_a_post(self):
+        self.create_pre_authenticated_session("alice@test.io")
+        self.browser.get(self.live_server_url + '/billboard/')
+        post_page = PostPage(self)
+
+        self.assertIn('Earthman RPG', self.browser.title)
+        header_text = self.browser.find_element(By.TAG_NAME, 'h1').text
+        self.assertIn('Welcome', header_text)
+
+        inputbox = post_page.get_line_input_box()
+        self.assertEqual(inputbox.get_attribute('placeholder'), 'Enter a post line')
+
+        inputbox.send_keys('Buy peacock feathers')
+
+        inputbox.send_keys(Keys.ENTER)
+        post_page.wait_for_row_in_post_table("Buy peacock feathers", 1)
+
+        post_page.add_post_line("Use peacock feathers to make a fly")
+
+        post_page.wait_for_row_in_post_table("Use peacock feathers to make a fly", 2)
+        post_page.wait_for_row_in_post_table("Buy peacock feathers", 1)
+
+    def test_multiple_users_can_start_posts_at_different_urls(self):
+        self.create_pre_authenticated_session("alice@test.io")
+        self.browser.get(self.live_server_url + '/billboard/')
+        post_page = PostPage(self)
+        post_page.add_post_line("Buy peacock feathers")
+
+        edith_post_url = self.browser.current_url
+        self.assertRegex(
+            edith_post_url,
+            r'/dashboard/post/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/$',
+        )
+
+        self.browser.delete_all_cookies()
+
+        self.create_pre_authenticated_session("disco@test.io")
+        self.browser.get(self.live_server_url + '/billboard/')
+        post_page = PostPage(self)
+        page_text = self.browser.find_element(By.TAG_NAME, 'body').text
+        self.assertNotIn('Buy peacock feathers', page_text)
+
+        post_page.add_post_line("Buy milk")
+
+        francis_post_url = self.browser.current_url
+        self.assertRegex(
+            francis_post_url,
+            r'/dashboard/post/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/$',
+        )
+        self.assertNotEqual(francis_post_url, edith_post_url)
+
+        page_text = self.browser.find_element(By.TAG_NAME, 'body').text
+        self.assertNotIn('Buy peacock feathers', page_text)
+        self.assertIn('Buy milk', page_text)