Update README.md

README.md

@@ -23,29 +23,6 @@ BrokeCrew makes free-tier models first-class citizens while eliminating their in
 
 ---
 
-## Architecture & Failure Design
-
-```text
-Prompt Ingest
-  │
-  ├── Stage A : Zero-latency Keyword & Regex classifier (0ms)
-  └── Stage B : Single-token LLM meta-router fallback
-  │
-  ▼
-[ Persona Selection ] ──> Ranked Candidate Cascade
-  │                         ├── Candidate 1 (e.g. qwen:free)
-  │                         ├── Candidate 2 (e.g. deepseek:free)
-  │                         └── Candidate 3 (e.g. gemini-flash paid fallback)
-  │
-  ▼
-[ Budget Engine ] ───────> Atomic Token/Request Tracker
-  │                         ├── Rolling 1-min sliding window (20 req/min)
-  │                         └── Daily quota tracker (50 vs 1,000 req/day by tier)
-  │
-  ▼
-[ Transport & Stream ] ──> Async SSE Parser ──> TUI / CLI stdout
-```
-
 ### Technical Invariants
 - **Fail-Fast Cascade Walk**: Free endpoints on OpenRouter frequently return transient `429`, `503`, or drop out of `/v1/models` without warning. Candidate resolution treats failures as cascade triggers rather than fatal aborts, stepping to the next viable candidate model within `<250ms`.
 - **Sliding-Window Budgeting**: Token usage and request counts are stored in atomic sliding windows (`VecDeque<DateTime<Utc>>`). Router and classifier calls deduct from the shared account budget to prevent downstream API lockouts.