feat: добавить поддержку Kimi K2.7 Code в ai-kimi

- Opus/Sonnet: kimi-k2.7 (флагманский программист)
- Haiku/Subagent: kimi-k2.6 (быстрый универсал)
- Проверка ключа тестирует kimi-k2.7
- Обновлён EFFORT_MAPPING.md и тесты

Co-Authored-By: Claude <noreply@anthropic.com>

tests/test_fixes.sh

@@ -48,11 +48,12 @@ test_kimi_claude_launcher() {
 # ── ai-kimi: uses official Kimi API ──────────────────────────────────────
 test_kimi_official_api() {
   if echo "$KIMI_SECTION" | grep -q 'api.kimi.com/coding' \
-    && echo "$KIMI_SECTION" | grep -q 'ANTHROPIC_DEFAULT_OPUS_MODEL=kimi-k2.6' \
+    && echo "$KIMI_SECTION" | grep -q 'ANTHROPIC_DEFAULT_OPUS_MODEL=kimi-k2.7' \
+    && echo "$KIMI_SECTION" | grep -q 'ANTHROPIC_DEFAULT_HAIKU_MODEL=kimi-k2.6' \
     && ! echo "$KIMI_SECTION" | grep -q 'artemox'; then
-    ok "ai-kimi: uses official Kimi API and model"
+    ok "ai-kimi: uses official Kimi API (K2.7 opus/sonnet, K2.6 haiku)"
   else
-    fail "ai-kimi: must use official Kimi API (api.kimi.com/coding) and model kimi-k2.6"
+    fail "ai-kimi: must use official Kimi API (api.kimi.com/coding) with K2.7 opus/sonnet, K2.6 haiku"
   fi
 }