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_my_posts.py

@@ -0,0 +1,44 @@
+from selenium.webdriver.common.by import By
+
+from .base import FunctionalTest
+from .post_page import PostPage
+from .my_posts_page import MyPostsPage
+
+
+class MyPostsTest(FunctionalTest):
+
+    def test_logged_in_users_posts_are_saved_as_my_posts(self):
+        self.create_pre_authenticated_session("disco@test.io")
+
+        self.browser.get(self.live_server_url + '/billboard/')
+        post_page = PostPage(self)
+        post_page.add_post_line("Reticulate splines")
+        post_page.add_post_line("Regurgitate spines")
+        first_post_url = self.browser.current_url
+
+        MyPostsPage(self).go_to_my_posts_page("disco@test.io")
+
+        self.wait_for(
+            lambda: self.browser.find_element(By.LINK_TEXT, "Reticulate splines")
+        )
+        self.browser.find_element(By.LINK_TEXT, "Reticulate splines").click()
+        self.wait_for(
+            lambda: self.assertEqual(self.browser.current_url, first_post_url)
+        )
+
+        self.browser.get(self.live_server_url + '/billboard/')
+        post_page.add_post_line("Ribbon of death")
+        second_post_url = self.browser.current_url
+
+        MyPostsPage(self).go_to_my_posts_page("disco@test.io")
+        self.wait_for(
+            lambda: self.browser.find_element(By.LINK_TEXT, "Ribbon of death")
+        )
+
+        self.browser.find_element(By.CSS_SELECTOR, "#id_logout").click()
+        self.wait_for(
+            lambda: self.assertEqual(
+                self.browser.find_elements(By.LINK_TEXT, "My Posts"),
+                [],
+            )
+        )