chore(config): Refactor Emacs config for cross-platform compatibility

Add Android/Termux support with `*is-android*` constant and
conditional GUI/terminal initialization. Remove maximized frame
defaults and custom.el. Replace corfu with corfu-terminal in
TTY. Add god-mode to terminal config with line number sync. Update
org agenda to use org-ql blocks with super-agenda grouping. Switch
solarized-theme to fork. Clean up redundant functions and unify
keyboard bindings across environments.

lisp/init-completion.el

@@ -24,36 +24,41 @@
                                   completion-at-point-functions))))))
 
 ;; corfu
-(use-package corfu
-  :autoload
-  (corfu-quit consult-completion-in-region)
-  :functions
-  (persistent-scratch-save)
-  :custom
-  (corfu-auto t)
-  (corfu-auto-prefix 2)
-  (corfu-count 12)
-  (corfu-preview-current nil)
-  (corfu-on-exact-match nil)
-  (corfu-auto-delay 0.2)
-  (corfu-popupinfo-delay '(0.4 . 0.2))
-  (global-corfu-modes '((not erc-mode
-                             circe-mode
-                             help-mode
-                             gud-mode
-                             vterm-mode)
-                        t))
-  :init
-  (global-corfu-mode)
-  (corfu-popupinfo-mode)
-  (corfu-history-mode)
-  :config
-  ;;Quit completion before saving
-  (add-hook 'before-save-hook #'corfu-quit)
-  (advice-add #'persistent-scratch-save :before #'corfu-quit)
-  :bind
-  (:map corfu-map
-	("RET" . nil)))
+(if (display-graphic-p)
+    (use-package corfu
+      :autoload
+      (corfu-quit consult-completion-in-region)
+      :functions
+      (persistent-scratch-save)
+      :custom
+      (corfu-auto t)
+      (corfu-auto-prefix 2)
+      (corfu-count 12)
+      (corfu-preview-current nil)
+      (corfu-on-exact-match nil)
+      (corfu-auto-delay 0.2)
+      (corfu-popupinfo-delay '(0.4 . 0.2))
+      (global-corfu-modes '((not erc-mode
+				 circe-mode
+				 help-mode
+				 gud-mode
+				 vterm-mode)
+                            t))
+      :init
+      (global-corfu-mode)
+      (corfu-popupinfo-mode)
+      (corfu-history-mode)
+      :config
+      ;;Quit completion before saving
+      (add-hook 'before-save-hook #'corfu-quit)
+      (advice-add #'persistent-scratch-save :before #'corfu-quit)
+      :bind
+      (:map corfu-map
+	    ("RET" . nil)))
+  
+  (use-package corfu-terminal
+    :init
+    (corfu-terminal-mode)))
 
 ;; 在eshell中使用tab打开补全
 (add-hook 'eshell-mode-hook