feat: add GLMT streaming with real-time thinking blocks

- SSEParser/DeltaAccumulator for streaming state

- TTFB 5-20x faster (<500ms vs 2-10s)

- DoS protection: buffer limits, 120s timeout

- 51/51 tests passing (+25 streaming tests)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "3.3.0",
+  "version": "3.4.0",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",