Replace hardcoded DSML typo variant lists in Go/Node tool call parsers with
generalized prefix consumption that tolerates repeated leading <, repeated DSML
prefix noise, and trailing pipe terminators. Split tiktoken-dependent token
counting into a build-tagged file for non-cgo platform compatibility. Add /data
directory to Dockerfile for bind-mount permissions.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Use go-tiktoken with embedded vocabularies for accurate BPE token counting. CountPromptTokens applies conservative padding so returned context token counts stay slightly above the real value instead of undercounting.
