feat(ai): localize hitl Discord messages via HITL_LANG (en, ja)

Discord に投稿する提案・エスカレーション・期限切れ・ボタンの文言を言語セット（en / ja）に分離し、HITL_LANG で起動時に選択できるようにした。識別子（action id、ラベル、run id、JSON）は言語に関係なくそのまま出す。
2026-10-08 14:33:48 +09:00
1 parent 8b403c54df
commit af1cb4f6dc
@@ -0,0 +1,96 @@
+package hitl
+
+import "fmt"
+
+// Strings holds every user-facing text of the bot. The language is chosen once at start (HITL_LANG=en|ja).
+// Identifiers (action ids, labels, run ids, JSON) stay as they are; only the surrounding text changes.
+type Strings struct {
+	ProposalTitle       func(actionID string) string
+	FieldRootCause      string
+	FieldTarget         string
+	FieldEvidence       string
+	FieldRationale      string
+	FieldRun            string
+	FieldStatus         string
+	FieldResult         string
+	FieldAlert          string
+	RootCauseValue      func(label string, conf float64) string
+	ButtonApprove       string
+	ButtonReject        string
+	StatusWaiting       func(unixTS int64) string
+	StatusRejected      func(by string) string
+	StatusExecuting     func(by string) string
+	StatusExecuted      func(by string) string
+	StatusApproveFailed func(err string) string
+	StatusExecFailed    func(by, err string) string
+	StatusExpiredBefore string
+	StatusNoDecision    string
+	ExpiryMessage       func(actionID, target, runID, scenarioID string) string
+	EscalationTitle     func(label string) string
+	EscalationStatus    string
+	ThreadRunbook       string
+	NotAllowed          string
+	Footer              func(model, prompt, session string) string
+	Empty               string
+}
+
+var langs = map[string]Strings{
+	"en": {
+		ProposalTitle:  func(a string) string { return "Layer-2 proposal: " + a },
+		FieldRootCause: "Root cause", FieldTarget: "Target", FieldEvidence: "Evidence", FieldRationale: "Rationale",
+		FieldRun: "Run / scenario", FieldStatus: "Status", FieldResult: "Result", FieldAlert: "Alert",
+		RootCauseValue: func(l string, c float64) string { return fmt.Sprintf("%s (confidence %.2f)", l, c) },
+		ButtonApprove:  "Approve", ButtonReject: "Reject",
+		StatusWaiting:       func(t int64) string { return fmt.Sprintf("waiting for approval until <t:%d:T>", t) },
+		StatusRejected:      func(by string) string { return "rejected by " + by },
+		StatusExecuting:     func(by string) string { return "approved by " + by + ", executing..." },
+		StatusExecuted:      func(by string) string { return "approved by " + by + "; executed" },
+		StatusApproveFailed: func(e string) string { return "approval failed: " + e },
+		StatusExecFailed:    func(by, e string) string { return "approved by " + by + "; execution failed: " + e },
+		StatusExpiredBefore: "expired before approval",
+		StatusNoDecision:    "no decision within the window; moved to layer 3",
+		ExpiryMessage: func(a, t, r, s string) string {
+			return fmt.Sprintf("Proposal `%s` for `%s` (run %s, scenario %s) received no decision within the approval window. Layer 3: follow the runbook or call the harness `/actions/execute` with the operator token.", a, t, r, s)
+		},
+		EscalationTitle:  func(l string) string { return "Escalation: " + l },
+		EscalationStatus: "layer 3: human decision required",
+		ThreadRunbook:    "Runbook:\n",
+		NotAllowed:       "You are not in the approver role.",
+		Footer:           func(m, p, s string) string { return fmt.Sprintf("model %s, prompt %s, session %s", m, p, s) },
+		Empty:            "-",
+	},
+	"ja": {
+		ProposalTitle:  func(a string) string { return "第2層の提案: " + a },
+		FieldRootCause: "推定原因", FieldTarget: "対象", FieldEvidence: "根拠", FieldRationale: "判断理由",
+		FieldRun: "Run / シナリオ", FieldStatus: "状態", FieldResult: "実行結果", FieldAlert: "アラート",
+		RootCauseValue: func(l string, c float64) string { return fmt.Sprintf("%s（確信度 %.2f）", l, c) },
+		ButtonApprove:  "承認", ButtonReject: "却下",
+		StatusWaiting:       func(t int64) string { return fmt.Sprintf("承認待ち（期限 <t:%d:T>）", t) },
+		StatusRejected:      func(by string) string { return by + " が却下" },
+		StatusExecuting:     func(by string) string { return by + " が承認、実行中..." },
+		StatusExecuted:      func(by string) string { return by + " が承認、実行済み" },
+		StatusApproveFailed: func(e string) string { return "承認の記録に失敗: " + e },
+		StatusExecFailed:    func(by, e string) string { return by + " が承認したが実行に失敗: " + e },
+		StatusExpiredBefore: "承認前に期限切れ",
+		StatusNoDecision:    "期限内に判断がなかったため第3層へ引き継ぎ",
+		ExpiryMessage: func(a, t, r, s string) string {
+			return fmt.Sprintf("提案 `%s`（対象 `%s`、run %s、シナリオ %s）は承認期限内に判断されませんでした。第3層の対応です。ランブックに従って手動で対処するか、オペレーター用トークンでハーネスの `/actions/execute` を呼び出してください。", a, t, r, s)
+		},
+		EscalationTitle:  func(l string) string { return "エスカレーション: " + l },
+		EscalationStatus: "第3層: 人の判断が必要",
+		ThreadRunbook:    "ランブック:\n",
+		NotAllowed:       "承認ロールが付与されていません。",
+		Footer: func(m, p, s string) string {
+			return fmt.Sprintf("モデル %s、プロンプト %s、セッション %s", m, p, s)
+		},
+		Empty: "-",
+	},
+}
+
+// Lang returns the string set for a language code; unknown codes fall back to English.
+func Lang(code string) Strings {
+	if s, ok := langs[code]; ok {
+		return s
+	}
+	return langs["en"]
+}