fix: insert quote string without reformatting the catalog

Replace the full Localizable.xcstrings rewrite from the previous commit
with a surgical content.message.quote entry so the diff stays reviewable.

Co-authored-by: Cursor <cursoragent@cursor.com>

bitchat/Localizable.xcstrings

@@ -39953,6 +39953,192 @@
         }
       }
     },
+    "content.message.quote" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "اقتباس في المسودة"
+          }
+        },
+        "bn" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "কম্পোজারে উদ্ধৃতি"
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "in entwurf zitieren"
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "quote in composer"
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citar en el compositor"
+          }
+        },
+        "fa" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "نقل‌قول در پیش‌نویس"
+          }
+        },
+        "fil" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "quote sa composer"
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citer dans le compositeur"
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "ציטוט בטיוטה"
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "कंपोज़र में उद्धृत करें"
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "kutip di composer"
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "cita nel compositore"
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "入力欄に引用"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "작성창에 인용"
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "petik dalam composer"
+          }
+        },
+        "ne" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "कम्पोजरमा उद्धरण"
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citeren in opsteller"
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "cytuj w polu wpisu"
+          }
+        },
+        "pt" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citar no compositor"
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citar no compositor"
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "цитировать в поле ввода"
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "citera i skrivfältet"
+          }
+        },
+        "ta" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "எழுதும் இடத்தில் மேற்கோள்"
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "อ้างในช่องพิมพ์"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "yazma alanına alıntıla"
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "цитувати у полі вводу"
+          }
+        },
+        "ur" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "کمپوزر میں اقتباس"
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "trích dẫn vào ô soạn"
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "引用到输入框"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "引用到輸入框"
+          }
+        }
+      }
+    },
+
     "content.message.show_less" : {
       "extractionState" : "manual",
       "localizations" : {

bitchat/Services/MessageClipboard.swift

@@ -0,0 +1,62 @@
+//
+// MessageClipboard.swift
+// bitchat
+//
+// This is free and unencumbered software released into the public domain.
+// For more information, see <https://unlicense.org>
+//
+
+import Foundation
+#if os(iOS)
+import UIKit
+#elseif os(macOS)
+import AppKit
+#endif
+
+/// Clipboard helpers for message actions. Kept out of the view so unit tests
+/// can assert quote formatting without standing up SwiftUI.
+enum MessageClipboard {
+    /// Plain message body for the pasteboard.
+    static func copyPlaintext(_ content: String) {
+        #if os(iOS)
+        UIPasteboard.general.string = content
+        #elseif os(macOS)
+        let pasteboard = NSPasteboard.general
+        pasteboard.clearContents()
+        pasteboard.setString(content, forType: .string)
+        #endif
+    }
+
+    /// Builds a composer-ready quote block (`> line` per line, trailing blank).
+    /// Sender header is plain text (`> alice:`), not `@alice`, so quoting does
+    /// not re-fire mention notifications for the quoted person or for names
+    /// inside the quoted body (those stay behind `> ` and are not live tokens).
+    static func quoteForComposer(_ content: String, sender: String?) -> String {
+        let body = content.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !body.isEmpty else { return "" }
+        let header: String
+        if let sender, !sender.isEmpty, sender != "system" {
+            header = "> \(sender):\n"
+        } else {
+            header = ""
+        }
+        let quoted = body
+            .split(separator: "\n", omittingEmptySubsequences: false)
+            .map { "> \($0)" }
+            .joined(separator: "\n")
+        return header + quoted + "\n\n"
+    }
+
+    /// Appends a quote to an existing composer draft without wiping it.
+    /// Only a trailing newline skips inserting another separator — a trailing
+    /// space must still get a newline so the quote marker starts its own line.
+    static func appendQuote(to draft: String, content: String, sender: String?) -> String {
+        let quote = quoteForComposer(content, sender: sender)
+        guard !quote.isEmpty else { return draft }
+        if draft.isEmpty { return quote }
+        if draft.hasSuffix("\n") {
+            return draft + quote
+        }
+        return draft + "\n" + quote
+    }
+}

bitchat/Views/ContentView.swift

@@ -251,12 +251,17 @@ struct ContentView: View {
         .frame(minWidth: 600, minHeight: 400)
         #endif
         .onChange(of: selectedPrivatePeerID) { newValue in
+            // Shared composer draft must not travel across conversation
+            // targets (quoting a DM then opening public would otherwise
+            // one-tap-broadcast private content).
+            messageText = ""
             if newValue != nil {
                 showSidebar = true
             }
             sharedContentImportModel.updateDestination(sharedContentDestination)
         }
         .onChange(of: locationChannelsModel.selectedChannel) { _ in
+            messageText = ""
             sharedContentImportModel.updateDestination(sharedContentDestination)
         }
         .sheet(

bitchat/Views/MessageListView.swift

@@ -143,13 +143,23 @@ struct MessageListView: View {
                                     }
                                 }
                                 Button("content.message.copy") {
-                                    #if os(iOS)
-                                    UIPasteboard.general.string = message.content
-                                    #else
-                                    let pb = NSPasteboard.general
-                                    pb.clearContents()
-                                    pb.setString(message.content, forType: .string)
-                                    #endif
+                                    MessageClipboard.copyPlaintext(message.content)
+                                }
+                                if !message.content.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty,
+                                   message.sender != "system" {
+                                    Button {
+                                        messageText = MessageClipboard.appendQuote(
+                                            to: messageText,
+                                            content: message.content,
+                                            sender: message.sender
+                                        )
+                                    } label: {
+                                        Text(String(
+                                            localized: "content.message.quote",
+                                            defaultValue: "quote in composer",
+                                            comment: "Context menu action that inserts a quoted copy of the message into the composer draft"
+                                        ))
+                                    }
                                 }
                                 if isResendableFailedMessage(message) {
                                     Button("content.actions.resend") {

bitchatTests/Services/MessageClipboardTests.swift

@@ -0,0 +1,46 @@
+import Foundation
+import Testing
+@testable import bitchat
+
+struct MessageClipboardTests {
+    @Test func quoteWrapsEachLineAndAddsSender() {
+        let quoted = MessageClipboard.quoteForComposer("hello\nworld", sender: "alice")
+        #expect(quoted == "> alice:\n> hello\n> world\n\n")
+    }
+
+    @Test func quoteSkipsSystemSenderHeader() {
+        let quoted = MessageClipboard.quoteForComposer("joined", sender: "system")
+        #expect(quoted == "> joined\n\n")
+    }
+
+    @Test func emptyContentYieldsEmptyQuote() {
+        #expect(MessageClipboard.quoteForComposer("   ", sender: "alice").isEmpty)
+    }
+
+    @Test func appendQuotePreservesExistingDraft() {
+        let result = MessageClipboard.appendQuote(
+            to: "already typing",
+            content: "prior message",
+            sender: "bob"
+        )
+        #expect(result == "already typing\n> bob:\n> prior message\n\n")
+    }
+
+    @Test func appendQuoteOntoEmptyDraft() {
+        let result = MessageClipboard.appendQuote(
+            to: "",
+            content: "solo",
+            sender: "carol"
+        )
+        #expect(result == "> carol:\n> solo\n\n")
+    }
+
+    @Test func appendQuoteAfterTrailingSpaceStartsNewLine() {
+        let result = MessageClipboard.appendQuote(
+            to: "draft with space ",
+            content: "quoted",
+            sender: "dana"
+        )
+        #expect(result == "draft with space \n> dana:\n> quoted\n\n")
+    }
+}