feat(shell): replace pager with ov, add logs browser, and auto-generate paru wrapper

- Set $PAGER to ov in config.fish (falls back to less); remove LESS=-R
- Rewrite less wrapper with full hierarchy: $PAGER → ov → less → more → cat
- Simplify view.fish fallback to delegate to the less wrapper
- Add logs function: fzf browser for scrollback and paru logs, opens in $PAGER
- Add claude wrapper: auto-injects --remote-control unless already present
- Add conf.d/paru-wrapper.fish: generates ~/.local/bin/paru on first run,
  versioned so future template changes auto-propagate on next shell start
- Sync README.md and requirements.md to document all of the above

functions/less.fish

@@ -1,11 +1,16 @@
 # Copyright (C) 2026 Rootiest
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
-# alias less=most
-function less --wraps='most' --description 'alias less=most'
-    if which most >/dev/null 2>&1
-        most $argv
-    else
+function less --wraps='ov' --description 'Pager wrapper: $PAGER → ov → less → more → cat'
+    if set -q PAGER; and command -q $PAGER
+        command $PAGER $argv
+    else if command -q ov
+        command ov $argv
+    else if command -q less
         command less $argv
+    else if command -q more
+        command more $argv
+    else
+        command cat $argv
     end
 end