Improve startup dictionary sync UX and default playback keybindings

- Add default `f` fullscreen overlay binding and switch default AniSkip skip key to `Tab`
- Make character-dictionary auto-sync non-blocking at startup with tokenization gating for Yomitan mutations
- Add ordered startup OSD progress (checking/generating/updating/importing), refresh current subtitle on sync completion, and extend regression tests

plugin/subminer.conf

@@ -66,7 +66,7 @@ aniskip_show_button=yes
 aniskip_button_text=You can skip by pressing %s
 
 # Keybinding to execute intro skip when button is visible.
-aniskip_button_key=y-k
+aniskip_button_key=TAB
 
 # OSD hint duration in seconds (shown during first 3s of intro).
 aniskip_button_duration=3

plugin/subminer/aniskip.lua

@@ -1,5 +1,6 @@
 local M = {}
 local matcher = require("aniskip_match")
+local DEFAULT_ANISKIP_BUTTON_KEY = "TAB"
 
 function M.create(ctx)
 	local mp = ctx.mp
@@ -464,7 +465,7 @@ function M.create(ctx)
 		local intro_start = state.aniskip.intro_start or -1
 		local hint_window_end = intro_start + 3
 		if in_intro and not state.aniskip.prompt_shown and now >= intro_start and now < hint_window_end then
-			local key = opts.aniskip_button_key ~= "" and opts.aniskip_button_key or "y-k"
+			local key = opts.aniskip_button_key ~= "" and opts.aniskip_button_key or DEFAULT_ANISKIP_BUTTON_KEY
 			local message = string.format(opts.aniskip_button_text, key)
 			mp.osd_message(message, tonumber(opts.aniskip_button_duration) or 3)
 			state.aniskip.prompt_shown = true

plugin/subminer/options.lua

@@ -1,4 +1,5 @@
 local M = {}
+local DEFAULT_ANISKIP_BUTTON_KEY = "TAB"
 
 local function normalize_socket_path_option(socket_path, default_socket_path)
 	if type(default_socket_path) ~= "string" then
@@ -42,7 +43,7 @@ function M.load(options_lib, default_socket_path)
 		aniskip_payload = "",
 		aniskip_show_button = true,
 		aniskip_button_text = "You can skip by pressing %s",
-		aniskip_button_key = "y-k",
+		aniskip_button_key = DEFAULT_ANISKIP_BUTTON_KEY,
 		aniskip_button_duration = 3,
 	}
 

plugin/subminer/ui.lua

@@ -1,4 +1,6 @@
 local M = {}
+local DEFAULT_ANISKIP_BUTTON_KEY = "TAB"
+local LEGACY_ANISKIP_BUTTON_KEY = "y-k"
 
 function M.create(ctx)
 	local mp = ctx.mp
@@ -89,8 +91,11 @@ function M.create(ctx)
 				aniskip.skip_intro_now()
 			end)
 		end
-		if opts.aniskip_button_key ~= "y-k" then
-			mp.add_key_binding("y-k", "subminer-skip-intro-fallback", function()
+		if
+			opts.aniskip_button_key ~= LEGACY_ANISKIP_BUTTON_KEY
+			and opts.aniskip_button_key ~= DEFAULT_ANISKIP_BUTTON_KEY
+		then
+			mp.add_key_binding(LEGACY_ANISKIP_BUTTON_KEY, "subminer-skip-intro-fallback", function()
 				aniskip.skip_intro_now()
 			end)
 		end