docs: clarify multi-language support via LLM and edge-tts

docs: inline design into READMEs and remove DESIGN.md

docs: add Chinese README and align README header

docs: update README and CLI specs for extract/build-deck

feat: auto-load .env and use external templates

feat: externalize Anki templates and add ENV.example

perf: treat .delete.* archives same as .reset.*

perf: treat .reset.* archives with filename-date guard

perf: extract short-circuit session scan by mtime

fix: include ogg media in Anki package and wrap audio fields

fix: edge-tts invocation for ogg output

fix: extract support ISO8601 timestamps in OpenClaw logs

feat: clawanki extract/build-deck minimal pipeline

docs: initial clawanki design draft

docs: clawanki-bootstrap