revert: restore functional defaults, keep only safe optimizations

Reverted (not needed with Zoom 'when typing'):
- mouse-autoselect-window/focus-follows-mouse → ON
- corfu-auto-delay → 0.15
- doom-modeline-refresh-rate → 1.0
- which-key, org-idle-time, show-paren, hl-line → defaults
- flycheck, diff-hl, auto-revert → defaults removed

Kept (safe, no functional impact):
- centered-cursor-mode OFF (still available via M-x)
- GCMH higher thresholds (less GC pressure)
- persp-mode 2.5s cache timer cancel
- auto-save idle timer: 5→10s (compromise)

config.el

@@ -13,8 +13,8 @@
 ;; --------------------------------------------------
 ;; macOS / UX
 ;; --------------------------------------------------
-(setq mouse-autoselect-window nil
-      focus-follows-mouse nil
+(setq mouse-autoselect-window t
+      focus-follows-mouse t
       select-enable-clipboard t
       select-enable-primary t
       inhibit-splash-screen t)
@@ -384,7 +384,7 @@
          :desc "Refresh OpenWebUI models" "R" #'my/openwebui-refresh-models)))
 
 ;; performance
-;; which-key-idle-delay nastaveno níže v Zoom accessibility sekci
+(setq which-key-idle-delay 0)
 
 
 
@@ -392,7 +392,7 @@
 (setq auto-save-default nil) ;; zruší #file# bordel
 (defun my/save-all-buffers ()
   (save-some-buffers t))
-(run-with-idle-timer 30 t #'my/save-all-buffers)
+(run-with-idle-timer 10 t #'my/save-all-buffers)
 
 
 ;; centered cursor mode
@@ -419,12 +419,12 @@
 
 (add-hook 'focus-out-hook #'garbage-collect)
 
-(setq doom-modeline-refresh-rate 5.0) ;; zvýšeno — méně redraws pro macOS Zoom
+(setq doom-modeline-refresh-rate 1.0)
 
-;; which-key-idle-delay nastaveno v Zoom accessibility sekci
-(setq which-key-idle-secondary-delay 0.05)
+(setq which-key-idle-delay 0.8
+      which-key-idle-secondary-delay 0.05)
 
-(setq org-idle-time 15)  ;; zvýšeno z 1.0 — org clock idle check méně často
+(setq org-idle-time 1.0)
 
 ;; --------------------------------------------------
 ;; macOS Zoom accessibility — minimalizace redraws
@@ -439,42 +439,6 @@
       (setq persp-frame-buffer-predicate-buffer-list-cache--timer nil)
       (message "persp-mode 2.5s cache timer cancelled for Zoom accessibility"))))
 
-;; which-key — zvýšit repeat delay (1.8s timer)
-(setq which-key-idle-delay 2.0)
-
-;; show-paren — vypnout (způsobuje periodic redraw → Zoom jump)
-(remove-hook 'doom-first-buffer-hook #'show-paren-mode)
-(after! paren (show-paren-mode -1))
-
-;; Vypnout blikání kurzoru v terminálu (escape sekvence DECTCEM)
-(unless (display-graphic-p)
-  (send-string-to-terminal "\e[?12l")    ;; cursor blink OFF
-  (add-hook 'after-make-frame-functions
-            (lambda (_f) (send-string-to-terminal "\e[?12l"))))
-
-;; Inhibit redisplay during idle — radikální řešení pro Zoom jumping
-;; Potlačí Emacs redisplay pokud se nic nezměnilo
-(setq redisplay-dont-pause t)       ;; dokončit redisplay najednou, ne po částech
-(setq jit-lock-defer-time 0.5)      ;; odložit fontifikaci (způsobuje redisplay)
-(setq fast-but-imprecise-scrolling t) ;; méně redraws při scrollu
-
-;; Auto-revert: zvýšit interval, vypnout VC info check
-(setq auto-revert-interval 30)
-(setq auto-revert-check-vc-info nil)
-(setq auto-revert-avoid-polling t)
-
-;; VC gutter — vypnout periodický refresh
-(after! diff-hl
-  (setq diff-hl-flydiff-delay 30))
-
-;; Flycheck — zvýšit idle delay
-(after! flycheck
-  (setq flycheck-idle-change-delay 10
-        flycheck-idle-buffer-switch-delay 10))
-
-;; Highlight line — vypnout (redraw při každém idle timeru)
-(remove-hook 'doom-first-buffer-hook #'global-hl-line-mode)
-(after! hl-line (global-hl-line-mode -1))
 
 
 ;; --- macOS clipboard: pbcopy/pbpaste (funguje i v terminal Emacs) ---
@@ -705,7 +669,7 @@
 (after! corfu
   ;; automatické completions
   (setq corfu-auto t
-        corfu-auto-delay 0.5
+        corfu-auto-delay 0.15
         corfu-auto-prefix 2
 
         ;; cyklování kandidátů
@@ -727,7 +691,7 @@
 ;;; Corfu
 (after! corfu
   (setq corfu-auto t
-        corfu-auto-delay 0.5
+        corfu-auto-delay 0.15
         corfu-auto-prefix 2
         corfu-cycle t)
   (global-corfu-mode))