Register email auto translate task

src/builtin_actions.py

@@ -569,6 +569,21 @@ async def action_draft_email_replies(owner: str, **kwargs) -> Tuple[str, bool]:
         return str(e), False
 
 
+async def action_email_auto_translate(owner: str, **kwargs) -> Tuple[str, bool]:
+    """Placeholder for the opt-in email translation enrichment task.
+
+    The task is seeded paused so it is visible in Tasks while the detector,
+    cache, and on-demand translation path are built. Returning False makes a
+    manual run show a clear message instead of pretending work happened.
+    """
+    return (
+        "Email auto-translate is registered but not implemented yet. "
+        "Next step: detect foreign-language emails, cache translations by body hash, "
+        "and stream translated text in the email reader without replacing the original.",
+        False,
+    )
+
+
 _TYPE_COLORS = {
     "work":     "#5b8abf",  # blue
     "personal": "#a07ae0",  # purple
@@ -2487,6 +2502,7 @@ BUILTIN_ACTIONS = {
     "tidy_research": action_tidy_research,
     "summarize_emails": action_summarize_emails,
     "draft_email_replies": action_draft_email_replies,
+    "email_auto_translate": action_email_auto_translate,
     "extract_email_events": action_extract_email_events,
     "classify_events": action_classify_events,
     # ping_events removed from the user-facing registry. Calendar reminders
@@ -2511,6 +2527,7 @@ BUILTIN_ACTION_INFO = {
     "tidy_research": "Remove orphaned research files (sessions that were deleted)",
     "summarize_emails": "Pre-generate AI summaries for new inbox emails",
     "draft_email_replies": "Pre-draft AI reply suggestions for new inbox emails",
+    "email_auto_translate": "Detect foreign-language emails and cache translated text for the email reader",
     "extract_email_events": "Scan emails for booking/meeting confirmations and auto-add to calendar",
     "classify_events": "Tag upcoming events with importance (low/normal/high/critical) and type (work/health/travel/etc.); colors them too",
     "daily_brief": "Build a morning digest: today's calendar, unread email count + top senders, active todos",

src/task_scheduler.py

@@ -239,6 +239,7 @@ HOUSEKEEPING_DEFAULTS = {
     "tidy_research":        {"name": "Research Tidy",            "trigger_type": "event", "trigger_event": "research_completed", "trigger_count": 5, "schedule": None, "scheduled_time": None, "cron_expression": None, "legacy_names": ["Tidy Research"]},
     "summarize_emails":     {"name": "Email (Summary)",          "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 */2 * * *", "ship_paused": True, "legacy_names": ["Tidy Email (Summary)"]},
     "draft_email_replies":  {"name": "Email AI Auto Reply",      "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 */2 * * *", "ship_paused": True, "legacy_names": ["Tidy Email (Replies)", "AI Auto Reply"]},
+    "email_auto_translate": {"name": "Auto-translate Emails",    "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 */2 * * *", "ship_paused": True, "legacy_names": ["Auto Translate Email", "Email Auto Translate"]},
     "extract_email_events": {"name": "Email Calendar Events",    "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 */1 * * *", "ship_paused": True, "legacy_names": ["Email → Calendar Events"]},
     "classify_events":      {"name": "Calendar Classify Events", "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 6,18 * * *", "ship_paused": True, "legacy_names": ["Classify Calendar Events"]},
     "check_email_urgency":   {"name": "Email Tags",               "schedule": "cron",  "scheduled_time": None,    "cron_expression": "0 * * * *", "ship_paused": True, "old_cron_expressions": ["*/15 * * * *"], "legacy_names": ["Email Triage", "Urgent Email"]},
@@ -1014,6 +1015,7 @@ class TaskScheduler:
         "learn_sender_signatures",
         "summarize_emails",
         "draft_email_replies",
+        "email_auto_translate",
         "extract_email_events",
         "classify_events",
         "tidy_sessions",
@@ -1027,6 +1029,7 @@ class TaskScheduler:
     _MODEL_BACKED_ACTIONS = frozenset({
         "summarize_emails",
         "draft_email_replies",
+        "email_auto_translate",
         "extract_email_events",
         "classify_events",
         "learn_sender_signatures",