Preserve device status params

Author: SqlRush

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

@@ -414,6 +414,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 本轮补充：terminal CSI parser 现在保留 DECRQM mode-request 的完整参数列表，例如 `CSI ?25;1000$p` 会同时暴露首个 mode code 和原始 params。
 - 本轮补充：terminal CSI parser 把 CPR cursor-position responses (`CSI row;col R` / DEC private `CSI ? row;col R`) 归入 report action，结构化暴露 row/column 并保持 visible-text stripping。
 - 本轮补充：terminal CSI parser 继续补齐 DEC 私有 DSR/CPR，`CSI ?6n` 现在归入 cursor-position report query，`CSI ?row;col;page R` 会保留 page 元数据。
+- 本轮补充：terminal CSI parser 现在保留 DSR/device-status report 的完整参数列表，例如 `CSI ?6;1n` 会同时暴露首个 report code 和原始 params。
 - 本轮补充：terminal CSI parser 把 xterm window manipulation/report (`CSI t`) 归入 report action，覆盖常见 `CSI 14t`/`CSI 18t` 查询，并把 `CSI 4;height;width t` 与 `CSI 8;rows;cols t` 的 pixel/text-area 尺寸参数结构化暴露。
 - 本轮补充：terminal CSI parser 现在保留 xterm window report 的完整参数列表，例如 `CSI 3;x;y t`、`CSI 4;height;width t`、`CSI 8;rows;cols t` 不再丢失 report code 后面的原始字段。
 - 本轮补充：terminal CSI parser 把 DECRPM mode status report (`CSI Ps;Ps $ y` / `CSI ? Ps;Ps $ y`) 归入 report action，保留 mode code、status 和 DEC private marker。

docs/first-second-parity-audit.md

@@ -323,6 +323,7 @@ M7 progress now includes:
 - `internal/tui`: terminal CSI parsing now accepts multi-parameter mode set/reset sequences such as `CSI ?1000;1006;2004h` and exposes the full mode list while preserving the first mode for existing single-mode callers.
 - `internal/tui`: terminal CSI parser now emits structured edit actions for insert/delete chars and insert/delete lines, plus forward/back tab cursor actions; output `CSI M` is parsed as delete-lines while input tokenization still keeps X10 mouse payload handling separate.
 - `internal/tui`: terminal CSI parser now emits report actions for DSR `CSI n`, including device-status, cursor-position, and private-mode unknown reports.
+- `internal/tui`: terminal CSI parsing now preserves complete DSR/device-status parameter lists such as `CSI ?6;1n` while keeping the existing first-code and private-marker fields.
 - `internal/tui`: terminal CSI parser now emits report actions for CPR cursor-position responses such as `CSI row;col R` and DEC private `CSI ? row;col R`, preserving row/column metadata while keeping visible text clean.
 - `internal/tui`: terminal CSI parser now treats DEC private `CSI ?6n` as a cursor-position report query and preserves the optional page field from `CSI ?row;col;page R` CPR responses.
 - `internal/tui`: terminal sequence dispatcher and parser now classify DCS/APC/PM/SOS string-control sequences as `stringControl` actions with payload, terminator, and incomplete-flush state while keeping visible text extraction free of those invisible payloads.

internal/tui/terminal_csi.go

@@ -470,7 +470,7 @@ func ParseCSISequence(sequence string) (CSIAction, bool) {
 	case CSICommandDeleteLines:
 		return csiEdit(CSIEditActionDeleteLines, p0), true
 	case CSICommandDSR:
-		return csiReport(rawP0, privateMode), true
+		return csiReport(rawP0, params, privateMode), true
 	case CSICommandSoftReset:
 		if intermediate == "!" && privateMode == 0 && len(params) == 0 {
 			return CSIAction{Type: CSIActionReset}, true
@@ -578,7 +578,7 @@ func csiEdit(actionType CSIEditActionType, count int) CSIAction {
 	}
 }
 
-func csiReport(code int, privateMode byte) CSIAction {
+func csiReport(code int, params []int, privateMode byte) CSIAction {
 	actionType := CSIReportActionUnknown
 	switch code {
 	case 5:
@@ -590,9 +590,13 @@ func csiReport(code int, privateMode byte) CSIAction {
 			actionType = CSIReportActionCursorPosition
 		}
 	}
+	report := CSIReportAction{Type: actionType, Code: code, PrivateMode: privateMode}
+	if len(params) > 1 {
+		report.Params = append([]int(nil), params...)
+	}
 	return CSIAction{
 		Type:   CSIActionReport,
-		Report: CSIReportAction{Type: actionType, Code: code, PrivateMode: privateMode},
+		Report: report,
 	}
 }
 

internal/tui/terminal_parser_test.go

@@ -510,6 +510,21 @@ func TestTerminalParserDispatchesCursorPositionReports(t *testing.T) {
 	}
 }
 
+func TestTerminalParserDispatchesDeviceStatusReports(t *testing.T) {
+	parser := NewTerminalParser()
+	input := "a" + CSISequence("?6;1n") + "b"
+	actions := parser.Feed(input)
+	if len(actions) != 3 {
+		t.Fatalf("actions = %#v", actions)
+	}
+	if actions[1].Type != TerminalActionReport || actions[1].Report.Type != CSIReportActionCursorPosition || actions[1].Report.Code != 6 || actions[1].Report.PrivateMode != '?' || !reflect.DeepEqual(actions[1].Report.Params, []int{6, 1}) {
+		t.Fatalf("device status report action = %#v", actions[1])
+	}
+	if got := TerminalVisibleText(input); got != "ab" {
+		t.Fatalf("visible = %q", got)
+	}
+}
+
 func TestTerminalParserUsesOutputTokenizerForCSIM(t *testing.T) {
 	parser := NewTerminalParser()
 	actions := parser.Feed("\x1b[M`rK")

internal/tui/tui_test.go

@@ -5282,6 +5282,7 @@ func TestParseCSISequenceActions(t *testing.T) {
 		{seq: CSISequence(6, "n"), want: CSIReportAction{Type: CSIReportActionCursorPosition, Code: 6}},
 		{seq: CSISequence(0, "n"), want: CSIReportAction{Type: CSIReportActionUnknown, Code: 0}},
 		{seq: CSISequence("?6n"), want: CSIReportAction{Type: CSIReportActionCursorPosition, Code: 6, PrivateMode: '?'}},
+		{seq: CSISequence("?6;1n"), want: CSIReportAction{Type: CSIReportActionCursorPosition, Code: 6, Params: []int{6, 1}, PrivateMode: '?'}},
 		{seq: CSISequence("?25n"), want: CSIReportAction{Type: CSIReportActionUnknown, Code: 25, PrivateMode: '?'}},
 		{seq: CSISequence(12, 34, "R"), want: CSIReportAction{Type: CSIReportActionCursorPosition, Row: 12, Column: 34}},
 		{seq: CSISequence("0;0R"), want: CSIReportAction{Type: CSIReportActionCursorPosition, Row: 1, Column: 1}},