v2 Phase 4: add "generated" (output) tokens under the total on Session

The total is ~97% cache reads, which reads as implausibly large on its own.
Show the cache-inclusive total as the headline token number and the output
tokens ("what Claude actually generated", ~1.1M) as a small line beneath it —
impressive total, believable sub-number. Daemon sends a new `to` field; firmware
parses output_today and renders it. Re-spaced the Session layout for the 5th row.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

daemon/claude_usage_daemon_windows.py

@@ -90,6 +90,7 @@ def compute_today_usage() -> dict:
     today = datetime.date.today()
     midnight = datetime.datetime.combine(today, datetime.time.min)
     total_tokens = 0
+    output_tokens = 0
     cost = 0.0
     messages = 0
     try:
@@ -133,13 +134,15 @@ def compute_today_usage() -> dict:
                     cw = usage.get("cache_creation_input_tokens", 0) or 0
                     cr = usage.get("cache_read_input_tokens", 0) or 0
                     total_tokens += inp + out + cw + cr
+                    output_tokens += out
                     messages += 1
                     p = _price_for(msg.get("model"))
                     cost += (inp * p["in"] + out * p["out"]
                              + cw * p["cache_w"] + cr * p["cache_r"]) / 1_000_000
         except OSError:
             continue
-    return {"tk": int(total_tokens), "tc": int(round(cost * 100)), "tn": messages}
+    return {"tk": int(total_tokens), "tc": int(round(cost * 100)),
+            "tn": messages, "to": int(output_tokens)}
 
 
 def _build_file_logger() -> logging.Logger | None: