Parse explicit CSI navigation keys

Author: SqlRush

docs/cc-100-roadmap.md

@@ -212,6 +212,8 @@ M7 补充：keybinding resolver/config 和脚本 named-key 输入已覆盖 `ctrl
 
 M7 补充：terminal input parser 现在把 modified SS3 function-key 序列（如 `ESC O 1;2P`、`ESC O 1;5Q`、`ESC O 1;16S`）归一为现有 F1-F4 key surface，补齐 xterm/kitty 兼容模式下的 F-key 输入形态。
 
+M7 补充：terminal input parser 现在把显式默认参数的 CSI navigation key 序列（如 `ESC [ 1 A`、`ESC [ 1 D`、`ESC [ 1 H`、`ESC [ 1 F`）归一为现有 arrow/Home/End key surface，同时继续让 `ESC [ 2 A` 这类 cursor-count 控制保持 unknown。
+
 M7 补充：task runtime 现在会在状态行、任务面板排序/渲染、批量取消和 scripted task expectation 前把 `active`/`in_progress`、`success`/`done`、`error`、`canceled` 等 task state 别名归一为 canonical 状态。
 
 M7 补充：permission runtime 现在会把 `Reject`/`deny`/`decline`/`disallow`/`no` 等 permission action 归一为 denied 结果，把 `Cancel`/`abort` 归一为 cancelled 结果，并让 scripted dialog-result status 断言接受 `rejected`/`approved` 等状态别名。

docs/claude-code-go-rewrite-plan.md

@@ -366,6 +366,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 本轮补充：scripted interaction assertion/check 数组元素的载荷现在也接受 `resource`/`node`/`attributes`/`properties`/`result`/`response`/`output`，让 JSON:API/resource-style 断言体可直接映射到 prompt/event/dialog/snapshot/screen/task/vim/viewport expectation。
 - 本轮补充：keybinding config、keymap 解析和 interaction script named-key 输入接受 `ctrl-h`/`ctrl-i`/`ctrl-j`/`ctrl-m`、`ctrl-[`、`ctrl-?`、对应 `control-*` 以及 compact/camel 形式；terminal parser 支持 CSI-u/kitty keyboard protocol 的 ctrl/alt/shift-enter/shift-tab 序列；image hint parser 支持 OSC ST terminator 和 base64 `name=` filename；keybinding JSON loader 支持 wrapper object-map、`shortcuts`、object action 字段、string-array key sequence/chord 和 `null`/`false` unbind；mouse parser 支持 legacy X10/normal tracking 序列；interaction script 支持结构化 mouse/mouse_event 步骤，button 接受 `buttonMask`/`button_mask`/`btn`/`code`/`mask`，坐标接受 `mouseX`/`mouse_x`/`clientX`/`screenX`/`pageX`/`offsetX`/`viewportX` 和对应 Y/row/line 别名，release 接受 `mouseUp`/`isRelease`/`mouseRelease`/`releaseEvent` 等字段别名；interaction script 还支持字符串 `keys` 和 `input`/`input_text`/`keys_text`/`raw_key`/`paste_text` 字段别名，并允许 status/snapshot/viewport/pasted-content contains 断言使用单字符串或字符串数组，`keybindings`、`expectEvents`、`expectDialogResults`、`expectPrompt.pastedContents` 和 `expectTasks.contains` 使用单对象或对象数组。
 - 本轮补充：terminal input parser 现在把 modified SS3 function-key 序列（如 `ESC O 1;2P`、`ESC O 1;5Q`、`ESC O 1;16S`）归一为现有 F1-F4 key surface，补齐 xterm/kitty 兼容模式下的 F-key 输入形态。
+- 本轮补充：terminal input parser 现在把显式默认参数的 CSI navigation key 序列（如 `ESC [ 1 A`、`ESC [ 1 D`、`ESC [ 1 H`、`ESC [ 1 F`）归一为现有 arrow/Home/End key surface，同时继续让 `ESC [ 2 A` 这类 cursor-count 控制保持 unknown。
 - 本轮补充：keybinding config 的 page/navigation/editing key name 现在接受 `pgup`/`pg-up`/`prior`/`pageUpKey`、`pgdn`/`pg-down`/`next`/`pageDownKey`、`homeKey`/`endKey`、`deleteForward`/`forwardDelete` 和 `deleteBackward`，覆盖常见终端、DOM 和配置别名。
 - 本轮补充：keybinding config 和脚本 named-key 输入现在接受 DOM/fixture 风格的 `enterKey`/`returnKey`/`numpadEnter`、`escapeKey`/`escKey`、`tabKey`、`shiftEnterKey`/`shiftNumpadEnter`、`shiftTabKey`/`backtabKey`，减少配置导入时对基础控制键名称的手工归一。
 - 本轮补充：keybinding config 和脚本 named-key 输入接受 DOM-style arrow key aliases，包括 `arrowLeft`/`arrowRight`/`arrowUp`/`arrowDown` 以及 ctrl/alt/meta/option arrow variants。

docs/first-second-parity-audit.md

@@ -510,7 +510,7 @@ M7 progress now includes:
 - `internal/tui`: Vim macro recording now treats uppercase macro registers such as `qA` as append-to-lowercase register operations, matching the existing named-register append behavior while keeping `@a`/`@@` playback on the canonical lowercase macro.
 - `internal/tui`: key parsing and configurable keybindings now expose `ctrl+space` from raw NUL and Kitty/CSI-u `0u`, `32;5u`, `64;5u`, and `50;5u` forms, with `ctrl-space`/`ctrl-@`/`ctrl-2` and compact `cSpace`/`c@`/`c2` aliases available for user keymaps and scripts.
 - `internal/tui`: key parsing and configurable keybindings now expose Ctrl-backslash, Ctrl-], Ctrl-^/Ctrl-6, and Ctrl-_/Ctrl-/ from raw terminal control bytes and Kitty/CSI-u forms, with symbol, named, and compact aliases available for user keymaps and scripts.
-- `internal/tui`: key parsing and configurable keybindings now expose F1-F12 from common SS3, modified SS3, legacy Linux-console, tilde CSI, and modified CSI function-key sequences, with `f1`, `function-key-1`, and `fn1` style aliases available for user keymaps and scripts.
+- `internal/tui`: key parsing and configurable keybindings now expose F1-F12 from common SS3, modified SS3, legacy Linux-console, tilde CSI, and modified CSI function-key sequences, with `f1`, `function-key-1`, and `fn1` style aliases available for user keymaps and scripts; navigation input also accepts explicit-default `CSI 1 A/B/C/D/H/F` forms while leaving counted cursor controls such as `CSI 2A` as unknown.
 - `internal/tui`: terminal ESC parsing now recognizes charset selection sequences such as `ESC ( B`, `ESC ) 0`, `ESC * B`, `ESC / A`, and `ESC % G` as structured charset actions and consumes them in visible-text parsing instead of surfacing them as unknown terminal output.
 - `internal/tui`: terminal ESC parsing now also recognizes ISO-2022 charset shift controls such as `ESC N`, `ESC n`, `ESC o`, `ESC |`, `ESC }`, and `ESC ~` as structured charset-shift actions and consumes them in visible-text parsing instead of surfacing them as unknown terminal output.
 - `internal/contracts`/`internal/session`: image content blocks now normalize source aliases such as `mediaType`/`mimeType`/`contentType` and `base64`/`payload`, including top-level image block fields, into canonical `ImageSource` values during transcript resume.

internal/tui/input.go

@@ -97,6 +97,9 @@ func ParseKey(seq string) Key {
 	if key, ok := parseCSIuKey(seq); ok {
 		return key
 	}
+	if key, ok := parseNumberedNavigationKey(seq); ok {
+		return key
+	}
 	if key, ok := parseModifiedNavigationKey(seq); ok {
 		return key
 	}
@@ -219,6 +222,36 @@ func ParseKey(seq string) Key {
 	}
 }
 
+func parseNumberedNavigationKey(seq string) (Key, bool) {
+	if !strings.HasPrefix(seq, "\x1b[") || len(seq) < 4 {
+		return Key{}, false
+	}
+	body := strings.TrimPrefix(seq, "\x1b[")
+	if strings.ContainsAny(body, ";:~") || len(body) < 2 {
+		return Key{}, false
+	}
+	code, ok := firstCSIParamNumber(body[:len(body)-1])
+	if !ok || code != 1 {
+		return Key{}, false
+	}
+	switch body[len(body)-1] {
+	case 'A':
+		return Key{Type: KeyUp}, true
+	case 'B':
+		return Key{Type: KeyDown}, true
+	case 'C':
+		return Key{Type: KeyRight}, true
+	case 'D':
+		return Key{Type: KeyLeft}, true
+	case 'H':
+		return Key{Type: KeyHome}, true
+	case 'F':
+		return Key{Type: KeyEnd}, true
+	default:
+		return Key{}, false
+	}
+}
+
 func parseModifiedNavigationKey(seq string) (Key, bool) {
 	switch {
 	case isModifiedNavigationCSI(seq, "\x1b[1;", "A"):

internal/tui/tui_test.go

@@ -968,6 +968,26 @@ func TestParseAlternateTerminalNavigationSequences(t *testing.T) {
 }
 
 func TestParseModifiedNavigationKeySequences(t *testing.T) {
+	numberedCases := []struct {
+		seq  string
+		want KeyType
+	}{
+		{seq: "\x1b[1A", want: KeyUp},
+		{seq: "\x1b[1B", want: KeyDown},
+		{seq: "\x1b[1C", want: KeyRight},
+		{seq: "\x1b[1D", want: KeyLeft},
+		{seq: "\x1b[1H", want: KeyHome},
+		{seq: "\x1b[1F", want: KeyEnd},
+	}
+	for _, tc := range numberedCases {
+		if key := ParseKey(tc.seq); key.Type != tc.want {
+			t.Fatalf("ParseKey(%q) = %#v, want %q", tc.seq, key, tc.want)
+		}
+	}
+	if key := ParseKey("\x1b[2A"); key.Type != KeyUnknown {
+		t.Fatalf("CSI 2A should not parse as navigation key: %#v", key)
+	}
+
 	for _, modifier := range []string{"2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16"} {
 		cases := []struct {
 			seq  string