Add Summary Digest feature and Memo triage action

[omarshahine]

Summary

• Summarize action: AI-summarizes flagged emails, attaches memo to email, generates a newspaper-style reading digest HTML with per-item Archive/Delete actions
• Memo action: Standalone triage action to attach user-written private annotations to emails via Fastmail's new create_memo API, then archive
• Reading category: New classification category with learning support — domains with 3+ summarize decisions auto-populate reading_senders list for pre-classification

Changes

New files (3)

• assets/reading-digest.html — Dark-themed digest UI with summary cards, bulk actions, decision export
• agents/reading-digest-generator.md — Sonnet agent that reads state, injects data into template, opens browser
• data/reading-digest-state.example.yaml — Schema for summarized items + processing history

Modified files (10)

• assets/batch-triage.html — Indigo (summarize) + sky-blue (memo) themes, actions in all 9 dropdowns, stats/progress counting
• agents/batch-processor.md — Summarize handler (flag + body + AI summary + memo + digest), Memo handler (attach text + archive), digest processing mode
• agents/batch-html-generator.md — Reading category classification with reading_senders lookup
• agents/decision-learner.md — Section G: detect summarize patterns, auto-add to reading_senders
• commands/batch.md — --digest argument for processing reading digest decisions
• data/settings.example.yaml — create_memo tool mapping (Fastmail/Gmail/Outlook)
• data/decision-history.example.yaml — New action types: summarize, memo, summarize_archive, summarize_delete + reading_senders list
• data/.gitignore — reading-digest-state.yaml
• .claude-plugin/plugin.json — v1.13.1, memo keyword
• marketplace.json — v1.14.1, memo keyword

Test plan

• Run /chief-of-staff:batch — verify Summarize and Memo actions appear in all dropdowns with correct colors
• Select Summarize for 2-3 emails, submit, run /chief-of-staff:batch --process — verify emails flagged, memos attached, digest HTML opens
• Select Memo for an email with notes text, submit, process — verify memo attached and email archived
• Review digest, pick Archive/Delete, submit, run /chief-of-staff:batch --digest — verify emails processed and state cleared
• After 3+ summarize decisions for same domain, verify next --generate pre-classifies into reading category

🤖 Generated with Claude Code