docs: close Sprint 5/5.5, prepare Sprint 6

- fix: CeoBlock padding 40px 48px → 40px 0 (v1.2)
- fix: BlockMetaBar.saveFullVersion() used defaultVersion instead of meta.version, causing version rollback in DB on snapshot save
- docs: mark Sprint 5 and 5.5 as completed in SPRINTS.md
- docs: update LLM_CONTEXT v4.5 — all 8 blocks documented, Sprint 6 current
- chore: Sidebar version → Sprint 6 · v0.6.0
- chore: add .vercel to .gitignore

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

apps/web/app/blocks/ceo/CeoPageClient.tsx

@@ -51,6 +51,13 @@ const LLM_CEO_TEXT = `
 
 
 const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "v1.2",
+    date: "25.03.2026",
+    changes: [
+      "Убраны горизонтальные отступы: padding 40px 48px → 40px 0 (как на реальном сайте)",
+    ],
+  },
   {
     version: "v1.1",
     date: "24.03.2026",
@@ -79,7 +86,7 @@ export default function CeoPageClient() {
         </h1>
         <BlockMetaBar
           path={BLOCK_PATH}
-          defaultVersion="v1.1"
+          defaultVersion="v1.2"
           defaultIsInPreview={false}
           defaultChangelog={CHANGELOG}
           onSnapshotSelect={setSnapshot}
@@ -179,7 +186,7 @@ export default function CeoPageClient() {
       </section>
 
       {/* LLM блок */}
-      <LlmBlock path="/blocks/ceo" version="v1.1" specText={LLM_CEO_TEXT}>
+      <LlmBlock path="/blocks/ceo" version="v1.2" specText={LLM_CEO_TEXT}>
         <LlmSection title="Структура блока" />
         <LlmTable
           headers={["Часть", "Содержимое", "Примечание"]}