feat: add linewise Visual selection and paste

README.md

@@ -24,8 +24,8 @@ Vamp starts in Normal mode. Press `i`, type text, then Esc to return to Normal.
 | Save in Normal | Space then `w`, or `:w` then Enter |
 | Undo/redo in Normal | `u` / `U` (Shift+u) |
 | Search in Normal | `/`, type a literal query, Enter; `n`/`N` for next/previous |
-| Select/copy/cut | `v` in Normal, move to extend, then `y`/`d` in Visual |
-| Paste in Normal | `p`/`P` after/before the caret; system clipboard by default |
+| Select/copy/cut | `v` characterwise or `V` whole rows, move to extend, then `y`/`d` in Visual |
+| Paste in Normal | `p`/`P` after/before the caret or row for linewise fragments; system clipboard by default |
 | Command palette | Ctrl+p; type to filter, arrows select, Enter accepts, Esc cancels |
 | Floating/docked explorer in Normal or Visual | Space then `o` / Space then `e` |
 
@@ -42,7 +42,7 @@ Ruby configuration and plugins run with your account's filesystem/process permis
 ## Current limits
 
 - One visible buffer at a time; no splits/tabs or graphical frontend.
-- Modal editing, not full Vim compatibility: characterwise Visual selections, but no line/block selection, named registers, or Vim operators. Search is literal, case-sensitive, and single-line.
+- Modal editing, not full Vim compatibility: characterwise and linewise Visual selections, but no block selection, named registers, or Vim operators. Search is literal, case-sensitive, and single-line.
 - Native opt-in LSP supports diagnostics, go-to-definition, plain-text hover, and automatic semantic highlighting—not completion, rename, formatting, or code actions.
 - System clipboard access supports macOS and Linux. Separate clipboard mode keeps internal editing available on unsupported/headless environments.