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:

firmware/src/data.h

@@ -13,6 +13,7 @@ struct UsageData {
     // Today's Claude Code usage (Phase 4 — computed by the daemon from local
     // transcripts). Tokens can exceed 2^31 on a heavy day, so use 64-bit.
     long long tokens_today;     // total tokens today (input+output+cache)
+    long long output_today;     // output tokens today (what Claude generated)
     int       cost_cents_today; // equivalent API cost today, US cents
-    int       messages_today;   // assistant messages today
+    int       messages_today;   // assistant requests (API turns) today
 };

firmware/src/main.cpp

@@ -113,6 +113,7 @@ static bool parse_json(const char* json, UsageData* out) {
     strlcpy(out->status, doc["st"] | "unknown", sizeof(out->status));
     out->ok = doc["ok"] | false;
     out->tokens_today = doc["tk"] | (long long)0;
+    out->output_today = doc["to"] | (long long)0;
     out->cost_cents_today = doc["tc"] | 0;
     out->messages_today = doc["tn"] | 0;
     out->valid = true;

firmware/src/ui.cpp

@@ -132,6 +132,7 @@ static lv_obj_t* bt_mac_lbl;
 static lv_obj_t* session_container; // today's tokens / cost
 static lv_obj_t* sess_cost_lbl;
 static lv_obj_t* sess_tokens_lbl;
+static lv_obj_t* sess_gen_lbl;
 static lv_obj_t* sess_msgs_lbl;
 
 // App registry — the launcher renders one tile per entry, so adding a screen is
@@ -704,25 +705,31 @@ static void init_session_screen(lv_obj_t* scr) {
     lv_label_set_text(sess_cost_lbl, "$0.00");
     lv_obj_set_style_text_font(sess_cost_lbl, &font_tiempos_56, 0);
     lv_obj_set_style_text_color(sess_cost_lbl, COL_TEXT, 0);
-    lv_obj_align(sess_cost_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 30);
+    lv_obj_align(sess_cost_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 25);
 
     lv_obj_t* sub = lv_label_create(session_container);
     lv_label_set_text(sub, "spent today");
     lv_obj_set_style_text_font(sub, &font_styrene_20, 0);
     lv_obj_set_style_text_color(sub, COL_DIM, 0);
-    lv_obj_align(sub, LV_ALIGN_TOP_MID, 0, L.content_y + 110);
+    lv_obj_align(sub, LV_ALIGN_TOP_MID, 0, L.content_y + 105);
 
     sess_tokens_lbl = lv_label_create(session_container);
     lv_label_set_text(sess_tokens_lbl, "\xE2\x80\x94 tokens");
     lv_obj_set_style_text_font(sess_tokens_lbl, &font_styrene_28, 0);
     lv_obj_set_style_text_color(sess_tokens_lbl, COL_ACCENT, 0);
-    lv_obj_align(sess_tokens_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 165);
+    lv_obj_align(sess_tokens_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 152);
+
+    sess_gen_lbl = lv_label_create(session_container);
+    lv_label_set_text(sess_gen_lbl, "\xE2\x80\x94 generated");
+    lv_obj_set_style_text_font(sess_gen_lbl, &font_styrene_16, 0);
+    lv_obj_set_style_text_color(sess_gen_lbl, COL_DIM, 0);
+    lv_obj_align(sess_gen_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 192);
 
     sess_msgs_lbl = lv_label_create(session_container);
     lv_label_set_text(sess_msgs_lbl, "\xE2\x80\x94 requests");
     lv_obj_set_style_text_font(sess_msgs_lbl, &font_styrene_20, 0);
     lv_obj_set_style_text_color(sess_msgs_lbl, COL_DIM, 0);
-    lv_obj_align(sess_msgs_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 215);
+    lv_obj_align(sess_msgs_lbl, LV_ALIGN_TOP_MID, 0, L.content_y + 232);
 
     lv_obj_add_flag(session_container, LV_OBJ_FLAG_HIDDEN);
 }
@@ -805,6 +812,8 @@ void ui_update(const UsageData* data) {
                               data->cost_cents_today / 100, data->cost_cents_today % 100);
         format_tokens(data->tokens_today, buf, sizeof(buf));
         lv_label_set_text_fmt(sess_tokens_lbl, "%s tokens", buf);
+        format_tokens(data->output_today, buf, sizeof(buf));
+        lv_label_set_text_fmt(sess_gen_lbl, "%s generated", buf);
         lv_label_set_text_fmt(sess_msgs_lbl, "%d requests", data->messages_today);
     }
 }