Implement general.focus_follows_mouse/auto_raise; remove the rest as dead

Auditing "clicking behavior and basics": general.focus_follows_mouse,
general.mouse_follows_focus, general.auto_raise, general.auto_focus,
the entire window.* namespace (8 more keys, a full duplicate of the
same four plus remember_position/size/state), and general.
smart_placement/border_width were all seeded into default_config() and
documented in DEFAULTS.md, but none were read anywhere - srd.set()/
srd.get() on any of them silently succeeded while doing nothing.

focus_follows_mouse is real, well-defined, and directly relevant to
clicking basics - implemented it plus auto_raise (raise, not just
focus, on hover) rather than just deleting the promise like the
others. WindowManager gained focus_follows_mouse/auto_raise bools,
wired from apply_general_settings the same way every other general.*
flag is. handle_pointer_position now tracks whichever window (content
or decoration) is under the pointer and, when the setting is on and
that differs from the currently-focused window, focuses it through the
same focus_window() free function every click-driven focus change
already uses (real keyboard focus, not just core state) - skipped
entirely while dragging/resizing or over a layer-shell surface, so the
pointer sweeping over other windows mid-drag or hovering a bar can't
steal focus from what's actually being manipulated.

mouse_follows_focus (pointer warp on keybinding-driven focus change)
and auto_focus (no clear distinct meaning beyond click-to-focus) stay
unimplemented and are now undocumented rather than promised.

1 files changed, 13 insertions, 0 deletions

diff --git a/crates/core/src/manager/mod.rs b/crates/core/src/manager/mod.rs
index 609b87f..6285736 100644
--- a/crates/core/src/manager/mod.rs
+++ b/crates/core/src/manager/mod.rs
@@ -86,6 +86,17 @@ pub struct WindowManager {
     /// redraws constantly - see `crates/wayland/src/rounded_corners.rs`).
     /// `Some(_)` only when the user explicitly set it, and wins either way.
     pub rounded_corners_enabled: Option<bool>,
+    /// Whether hovering a window (no click needed) focuses it, read from
+    /// `general.focus_follows_mouse`. Off by default - matches
+    /// `general.focus_follows_mouse`'s own documented default, and every
+    /// desktop's convention of click-to-focus unless a user explicitly
+    /// opts into the classic X11 sloppy-focus behaviour.
+    pub focus_follows_mouse: bool,
+    /// Whether hover-driven focus (above) also raises the window, not just
+    /// focuses it - read from `general.auto_raise`. Meaningless (never
+    /// consulted) while `focus_follows_mouse` is off, since a plain click
+    /// already raises unconditionally regardless of this.
+    pub auto_raise: bool,
     /// Default decoration colours and border width, read from `theme.colors.*`/
     /// `theme.decorations.*`. See `ThemeConfig`'s own doc comment.
     pub theme: ThemeConfig,
@@ -131,6 +142,8 @@ impl WindowManager {
             shadows_enabled: true,
             resize_margin: RESIZE_MARGIN,
             rounded_corners_enabled: None,
+            focus_follows_mouse: false,
+            auto_raise: false,
             theme: ThemeConfig::default(),
             drag: None,
             resize: None,