Add digest command to email processor

Read-only summary of recent decisions, grouped by action with
[auto]/[user] markers. Supports --recent N for multi-day lookback.

scripts/email_processor/main.py

@@ -19,6 +19,8 @@ Subcommands:
     python main.py review all <action>               # act on all pending
     python main.py review accept                     # accept all suggestions
     python main.py stats                             # show decision history
+    python main.py digest                            # today's processed emails
+    python main.py digest --recent 3                 # last 3 days
 
 Action mapping (what each classification does to the email):
     delete    -> himalaya message delete <id>  (moves to Trash)
@@ -633,6 +635,56 @@ def cmd_stats():
         print(f"\nKnown labels: {', '.join(sorted(labels))}")
 
 
+# ---------------------------------------------------------------------------
+# Subcommand: digest
+# ---------------------------------------------------------------------------
+
+def cmd_digest(days=1):
+    """Print a compact summary of recently processed emails, grouped by action.
+
+    Shows both auto and user decisions with a marker to distinguish them.
+    """
+    grouped = decision_store.get_recent_decisions(days)
+
+    if not grouped:
+        period = "today" if days == 1 else f"last {days} days"
+        print(f"No processed emails in this period ({period}).")
+        return
+
+    period_label = "today" if days == 1 else f"last {days} days"
+    print(f"Email digest ({period_label})")
+    print("=" * 40)
+
+    # Map action names to display labels
+    action_labels = {
+        "delete": "Deleted",
+        "archive": "Archived",
+        "keep": "Kept",
+        "mark_read": "Marked read",
+    }
+
+    total = 0
+    auto_count = 0
+    user_count = 0
+
+    for action, entries in sorted(grouped.items()):
+        label = action_labels.get(action, action.replace("label:", "Labeled ").title())
+        print(f"\n{label} ({len(entries)}):")
+        for entry in entries:
+            source = entry.get("source", "?")
+            sender = entry.get("sender", "unknown")
+            subject = entry.get("subject", "(no subject)")
+            print(f"  [{source}] {sender}")
+            print(f"         {subject}")
+            total += 1
+            if source == "auto":
+                auto_count += 1
+            else:
+                user_count += 1
+
+    print(f"\nTotal: {total} emails processed ({auto_count} auto, {user_count} user)")
+
+
 # ---------------------------------------------------------------------------
 # Entry point & argument parsing
 #
@@ -695,7 +747,10 @@ if __name__ == "__main__":
     elif subcommand == "stats":
         cmd_stats()
 
+    elif subcommand == "digest":
+        cmd_digest(days=recent if recent else 1)
+
     else:
         print(f"Unknown subcommand: {subcommand}")
-        print("Usage: python main.py [scan|review|stats] [--recent N] [--dry-run]")
+        print("Usage: python main.py [scan|review|stats|digest] [--recent N] [--dry-run]")
         sys.exit(1)