docs(website): update the /features "Recent" group to v3.4.0 (#120)

* docs(website): update the /features "Recent" group to v3.4.0

The Recent group still showcased v2.9–v2.20 features (Today dashboard,
scratch worktree, OAuth, AI inline suggestions). Replaced with the four
headline v3.4.0 conflict-engine additions: token-level merge, 2-way base
recovery, resolution preview + per-hunk confirm, and the
recoverable-before-model metric.

Note: HomeLanding.vue's tabbed "What's New" cards (featScratch/featOAuth/…)
and highlight banner are dead code — the markup was removed from the
template, only the i18n keys + CSS remain. Left untouched; the live
"What's New" surfaces (hero announce, /changelog button) already read v3.4.

disabled

* chore(website): remove dead landing features/tabs/patterns/bench code

The tabbed features section, patterns grid, benchmarks section and the
"What's New" highlight banner were removed from HomeLanding's template at
some point, but their i18n keys (×5 locales), CSS and script symbols were
left behind — 80 orphan locale keys plus the matching style blocks and the
TabId/activeTab/jumpToNewTab trio, none referenced anywhere.

Removed authoritatively: a key line is deleted only when its head key is
never referenced as t.<key> in the template, and a CSS rule only when every
class in its selector is confirmed unused (verified against the template,
not eyeballed). 793 lines, pure deletion, no live key or class touched.
Website build passes.

---------

Co-authored-by: Laurent Guitton <laurent.guitton@dendreo.com>

Author: devlint

website/.vitepress/theme/FeaturesPage.vue

@@ -34,12 +34,12 @@ const GROUPS = [
     ],
   },
   {
-    title: 'Recent',
+    title: 'New in v3.4',
     items: [
-      ['Today — cross-repo dashboard', 'A triaged action inbox across every repo, sorted by urgency, one state-aware action per row. ⌘L from anywhere.'],
-      ['Scratch worktree + Conflict Predictor', 'Resolve conflicts in a throwaway worktree; predict rebase and cherry-pick conflicts with a risk badge.'],
-      ['GitHub OAuth, Azure DevOps & cross-fork PRs', 'OAuth device-flow sign-in, tokens in the OS keychain, cross-fork PRs targeting the upstream parent.'],
-      ['AI inline code suggestions', 'Select a hunk in the Review panel, request a targeted rewrite, accept the AI suggestion in one click.'],
+      ['Token-level merge', 'Both sides changed disjoint tokens on the same line — GitWand decomposes it token by token and proposes the merge. Never auto-applied: you confirm it in a panel.'],
+      ['2-way base recovery', 'Reconstructs the diff3 base from the git index so the base-dependent patterns work even on repos using git’s default conflict style — where they used to sit inert.'],
+      ['Resolution preview + per-hunk confirm', 'Every auto-resolvable hunk shows its result before you apply it, and “Resolve auto” confirms a per-hunk summary instead of applying blind.'],
+      ['Recoverable-before-model metric', 'See how much of the residual is still resolved deterministically before any AI — in the CLI, the merge editor, and a cumulative local tally in Settings.'],
     ],
   },
 ] as const