refactor: switch ai-kimi to official Kimi API via Claude Code

- Replace native kimi CLI launcher with Claude Code + Kimi backend

- Update README description and permission flags

- Update test_isolated.sh and tests/test_fixes.sh for new ai-kimi logic

test_isolated.sh

@@ -51,29 +51,14 @@ else
 fi
 
 echo ""
-echo "=== Test 2: ai-kimi calls kimi install URL when missing ==="
-MOCK_LOG="$TMPDIR/mock_curl2.log"
+echo "=== Test 2: ai-kimi is a Claude Code launcher with Kimi backend ==="
 
-cat > "$TMPDIR/curl" << CURLEOF
-#!/usr/bin/env bash
-echo "\$@" >> "$MOCK_LOG"
-if [[ "\$*" == *"code.kimi.com/kimi-code/install.sh"* ]]; then
-  mkdir -p "\$HOME/.kimi-code/bin"
-  echo '#!/usr/bin/env bash
-echo "kimi mock \$*"' > "\$HOME/.kimi-code/bin/kimi"
-  chmod +x "\$HOME/.kimi-code/bin/kimi"
-fi
-CURLEOF
-chmod +x "$TMPDIR/curl"
-
-HOME="$TMPDIR" PATH="$TMPDIR:/usr/bin:/bin" "$BIN_DIR/ai-kimi" --version 2>&1 || true
-
-if grep -q "code.kimi.com/kimi-code/install.sh" "$MOCK_LOG"; then
-  echo "[PASS] ai-kimi вызвал установку Kimi"
+if grep -q 'ANTHROPIC_BASE_URL' "$BIN_DIR/ai-kimi" \
+  && grep -q 'api.kimi.com/coding' "$BIN_DIR/ai-kimi" \
+  && grep -q 'claude --dangerously-skip-permissions' "$BIN_DIR/ai-kimi"; then
+  echo "[PASS] ai-kimi запускает claude с официальным Kimi API"
 else
-  echo "[FAIL] ai-kimi НЕ вызвал установку Kimi"
-  echo "curl log:"
-  cat "$MOCK_LOG" 2>/dev/null || echo "(пусто)"
+  echo "[FAIL] ai-kimi должен запускать claude с api.kimi.com/coding"
   exit 1
 fi