LLM Tokenizer Binary & JSON X-Ray: Glitch-Token Hunter, EOS/PAD Collision & Fertility Meter

Deterministic Byte-level BPE merge-priority DAG reachability analyzer (under-trained/unreachable token hunter) + SentencePiece Protobuf unigram log-prob parser + special-token ID collision & UTF-8 fertility scorer engine (.json, .model, .tiktoken) built for Hugging Face Tokenizers, Unsloth, Axolotl, OpenAI Tiktoken — zero-upload ephemeral Wasm RAM execution.