Closes the loop on Ethan's Socratic journaling system: right now prompts go OUT to the tablet but his handwritten answers never come back into any system. This harvests the OCR'd answers, stores them, and weekly has gemma surface recurring themes and contradictions across what he's actually been writing.
Create ~/bin/reflection-echo: (1) scan ~/Tablet/ for pages whose OCR text (from note-ocr service output) contains date-stamps matching recent socratic-morning-brief runs; (2) extract the handwritten answer text and append {date, prompt, answer} to ~/journal/answers.jsonl; (3) on Sundays, pipe the last 7 entries to `gemma` with a prompt asking for recurring themes + any self-contradictions, then deliver via socratic-tablet-pipe to the tablet. Add a cron line `0 6 * * * ~/bin/reflection-echo` via safe-append. ~70 lines bash + one gemma call.