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/smart_exit.fish

@@ -42,7 +42,10 @@ function smart_exit --description 'Capture colorized scrollback before exiting,
             # we check if it contains the phrase "exit" to match 'exit -n' or 'exit --help'.
             if string match -qr exit "$_"
                 if not string match -qr '^(nvim|vim|vi|nano|emacs|tmux)$' "$active_tui"
+                    # Capture the log via the shell
                     kitty @ get-text --match id:$KITTY_WINDOW_ID --extent all --ansi | sed 's/^\[38;2;[0-9;]*m//g' >$filename 2>/dev/null
+                    # Broadcast a window variable flag telling Kitty the log is handled
+                    kitty @ set-user-vars "logged_by_shell=true" 2>/dev/null
                 end
             end
         end