fix(clipboard): fix wl-copy daemonization and normal-mode p mapping

- Wrap wl-copy in setsid so the background clipboard process runs in a
  new session, detached from nvim's process group which was killing it
- Switch from string form to dict form with cache_enabled=1 for
  reliable cache-based paste within the same session
- Add mode='v' to the p->"_dP mapping which was leaking into normal
  mode, silently aborting every paste attempt

Author: Venkata Subramani Renduchintala

lua/mappings.lua

@@ -280,7 +280,7 @@ wk.add({
 	-- Edit
 	{ "C", '"_C', desc = "Do not copy when changing" },
 	{ "cc", '"_cc', desc = "Do not copy when changing" },
-	{ "p", '"_dP', desc = "Paste without replacing what is was in clipboard" },
+	{ "p", '"_dP', desc = "Paste without replacing what is was in clipboard", mode = "v" },
 	{ "<a-j>", ":m '>+1<cr>gv=gv", desc = "[MOVE] Move block down" },
 	{ "<a-k>", ":m '<-2<cr>gv=gv", desc = "[MOVE] Move block up" },
 

lua/settings.lua

@@ -1,10 +1,12 @@
 local utils = require("utils")
 
--- Force wl-copy provider; must be set before has('clipboard') is called.
--- Nvim auto-detects wl-copy on Wayland, but the explicit string form pins
--- the provider and skips the detection loop.
 if vim.fn.has("unix") == 1 and vim.fn.executable("wl-copy") == 1 and vim.env.WAYLAND_DISPLAY then
-	vim.g.clipboard = "wl-copy"
+	vim.g.clipboard = {
+		name  = "wl-clipboard",
+		copy  = { ["+"] = {"setsid", "wl-copy", "--type", "text/plain"}, ["*"] = {"setsid", "wl-copy", "--primary", "--type", "text/plain"} },
+		paste = { ["+"] = {"wl-paste", "--no-newline"},         ["*"] = {"wl-paste", "--no-newline", "--primary"} },
+		cache_enabled = 1,
+	}
 end
 
 local options = {