chore: mark task #1 done after v0.1.8 release

.taskmaster/tasks/tasks.json

@@ -5,7 +5,7 @@
         "id": 1,
         "title": "feat: search-mode split-view with PDF + page jump",
         "description": "Render /kb/search results as a two-column split view: left column is the stack of ranked hit cards (kind, title, section, page label), right column is an iframe viewing the selected hit's PDF scrolled to page_number. Clicking any hit swaps the iframe. Text-only sources (law from Wikisource) fall back to a chunk/text panel with a Wikisource link so the right column never 404s.",
-        "status": "in-progress",
+        "status": "done",
         "priority": "high",
         "details": "Before this change renderSearchResults produced plain vertical text cards — users got the chunk body and had to open the Wikisource link (or track down the PDF manually) to verify context. With 5 of 5 PDFs now carrying accurate page_number (shira-hermes e534709 + 1ca1cc0), the search UI can finally deep-link to the right page. Mirrors the ask-mode split view (v0.1.7 uncommitted).",
         "testStrategy": "Search 'תקנה 37' → first hit should be a regulation/circular → right pane loads the PDF at page ~N where the section appears. Click a lower-ranked law hit → right pane swaps to a Wikisource link view. Search 'הגדרות' → hits span multiple sources → each click swaps iframe source.",