feat(keyboard): add clipboard AI skills, hint keywords, and voice session fixes

Idle chips show entities with category icons; a fresh copy surfaces Reply/Summarize/Translate; abort/cancel/empty-tap no longer leave the mic stuck.

OSGKeyboardShared/Services/AIHintKeywordCompressor.swift

@@ -1,8 +1,8 @@
 // AIHintKeywordCompressor.swift
 // OSGKeyboard · Shared
 //
-// Uses the user's polish LLM to compress remote hint titles into one-line
-// display labels. Failure leaves the previous ready pack untouched (caller).
+// Optional LLM pass after deterministic keyword extraction. Failure leaves
+// the extracted labels in place (hard truncate only as a last resort).
 
 import Foundation
 
@@ -19,8 +19,15 @@ public struct AIHintKeywordCompressor: Sendable {
         cards: [AIHintCard],
         locale: String
     ) async -> [AIHintCard] {
-        let candidates = cards.filter { shouldCompress($0) }
-        guard !candidates.isEmpty else { return cards }
+        let prepared = cards.map { card -> AIHintCard in
+            var copy = card
+            copy.displayText = AIHintKeywordExtractor.displayText(for: card)
+            return copy
+        }
+        let candidates = zip(cards, prepared).compactMap { original, extracted -> AIHintCard? in
+            shouldCompress(extracted) ? original : nil
+        }
+        guard !candidates.isEmpty else { return prepared }
 
         do {
             let client = try resolveClient()
@@ -28,6 +35,7 @@ public struct AIHintKeywordCompressor: Sendable {
                 [
                     "id": $0.id,
                     "text": $0.displayText,
+                    "title": $0.metadata?.title ?? "",
                     "category": $0.category,
                     "source": $0.source,
                 ]
@@ -48,32 +56,27 @@ public struct AIHintKeywordCompressor: Sendable {
                 return result
             }
             let mapping = Self.parseDisplayMap(from: raw)
-            guard !mapping.isEmpty else { return cards }
-            return cards.map { card in
+            guard !mapping.isEmpty else { return prepared }
+            return prepared.map { card in
                 guard let display = mapping[card.id], !display.isEmpty else { return card }
                 var copy = card
-                copy.displayText = Self.sanitizeDisplay(display, locale: locale)
+                copy.displayText = AIHintKeywordExtractor.finalize(display, locale: locale)
                 return copy
             }
         } catch {
             #if DEBUG
             print("⚠️ [AIHintKeywordCompressor] failed: \(error)")
             #endif
-            return cards.map { card in
-                var copy = card
-                copy.displayText = Self.fallbackTruncate(card.displayText, locale: locale)
-                return copy
-            }
+            return prepared
         }
     }
 
     private func shouldCompress(_ card: AIHintCard) -> Bool {
         if isHistoricalToday(card) { return false }
-        if card.locale == "zh" || card.displayText.contains(where: { $0.isCJKUnifiedIdeograph }) {
-            return card.displayText.count > 12 || card.displayText.contains("…")
-                || card.displayText.contains("全网热点")
-        }
-        return card.displayText.count > 28
+        if card.requiresClipboard30s { return false }
+        let limit = AIHintKeywordExtractor.characterLimit(locale: card.locale)
+        return card.displayText.count > limit
+            || card.displayText.contains("…")
     }
 
     private func isHistoricalToday(_ card: AIHintCard) -> Bool {
@@ -103,34 +106,30 @@ public struct AIHintKeywordCompressor: Sendable {
     private static func systemPrompt(locale: String) -> String {
         if locale == "zh" {
             return """
-            你是输入法 AI 空闲轮播的文案压缩器。
-            输入是 JSON 数组，每项含 id/text/category/source。
+            你是输入法 AI 空闲轮播的关键词提取器。
+            输入是 JSON 数组，每项含 id/text/title/category/source。
             输出 JSON 数组，每项仅 {"id","displayText"}。
 
             硬性规则：
-            - displayText 必须单行，不要省略号结尾
-            - 中文约 5–12 字
-            - 按意图选句式，禁止统一加「聊聊」前缀：
-              · 讨论类热点 →「聊聊+实体」
-              · 剪贴板动作 →「帮我回复剪贴板」「把剪贴板译成英文」等
-              · 天气查询 →「上海天气怎么样」
-              · 早报/行情 →「看今日早报」「今天大盘如何」
-              · 生成类 →「来句今日金句」「讲个有趣概念」
-              · 节日 →「中秋节怎么过」
+            - displayText 必须是实体/关键词，不要写成问句或动作句
+            - 禁止「聊聊」「看看」「帮我」等动词前缀
+            - 单行，不要省略号结尾
+            - 中文约 4–10 字；优先用 title 字段
             - 丢弃「历史上的今天」类条目（不要输出它们的 id）
             - 不要改写 prompt；不要 Markdown；只输出 JSON
             """
         }
         return """
-        You compress AI keyboard idle hint titles.
-        Input: JSON array of {id,text,category,source}.
+        You extract keywords for AI keyboard idle hint chips.
+        Input: JSON array of {id,text,title,category,source}.
         Output: JSON array of {"id","displayText"} only.
 
         Rules:
-        - displayText must be one line, no trailing ellipsis
-        - English: ≤28 characters, NO "Chat"/"Chat about" prefix
-        - Match intent (action / query / discuss) with a short natural label
-        - Drop "On this day" / historical-today style items (omit their ids)
+        - displayText is the entity/keyword, not a question or action sentence
+        - No "Chat"/"Chat about" prefix
+        - One line, no trailing ellipsis
+        - English: ≤22 characters; prefer the title field
+        - Drop "On this day" / historical-today items (omit their ids)
         - Do not change prompts; JSON only, no Markdown
         """
     }
@@ -163,31 +162,10 @@ public struct AIHintKeywordCompressor: Sendable {
     }
 
     public static func sanitizeDisplay(_ text: String, locale: String) -> String {
-        var value = text
-            .replacingOccurrences(of: "\n", with: " ")
-            .trimmingCharacters(in: .whitespacesAndNewlines)
-        while value.hasSuffix("…") || value.hasSuffix("...") {
-            if value.hasSuffix("...") {
-                value = String(value.dropLast(3))
-            } else {
-                value = String(value.dropLast())
-            }
-            value = value.trimmingCharacters(in: .whitespacesAndNewlines)
-        }
-        return fallbackTruncate(value, locale: locale)
+        AIHintKeywordExtractor.finalize(text, locale: locale)
     }
 
     public static func fallbackTruncate(_ text: String, locale: String) -> String {
-        let limit = locale == "zh" ? 12 : 28
-        guard text.count > limit else { return text }
-        return String(text.prefix(limit))
-    }
-}
-
-private extension Character {
-    var isCJKUnifiedIdeograph: Bool {
-        unicodeScalars.contains { scalar in
-            (0x4E00...0x9FFF).contains(scalar.value)
-        }
+        AIHintKeywordExtractor.finalize(text, locale: locale)
     }
 }