docs(v3.5.0): update README for integrated mg_dotfiles and security improvements

- Integrated mg_dotfiles as regular directory (not submodule)
- Added .zshrc.local.example template for local configs without secrets
- Added mg_dotfiles/zsh/.zshrc.local to .gitignore to protect API keys
- Updated README to reflect mg_dotfiles integration and new structure
- Added nvim configuration directory with LazyVim setup

mg_dotfiles/omarchy/hypr/hyprlock.conf

@@ -0,0 +1,43 @@
+source = ~/.config/omarchy/current/theme/hyprlock.conf
+ 
+general {
+    ignore_empty_input = true
+}
+
+background {
+    monitor =
+    color = $color
+    path = ~/.config/omarchy/current/background
+    blur_passes = 3
+}
+
+animations {
+    enabled = false
+}
+
+input-field {
+    monitor =
+    size = 650, 100
+    position = 0, 0
+    halign = center
+    valign = center
+
+    inner_color = $inner_color
+    outer_color = $outer_color
+    outline_thickness = 4
+
+    font_family = CaskaydiaMono Nerd Font
+    font_color = $font_color
+
+    placeholder_text = Enter Password 󰈷
+    check_color = $check_color
+    fail_text = <i>$FAIL ($ATTEMPTS)</i>
+
+    rounding = 0
+    shadow_passes = 0
+    fade_on_empty = false
+}
+
+auth {
+    fingerprint:enabled = true
+}