docs(spike): catat RAM binary ~21 MB + hardware uji di T-0.4

docs/spikes/T-0.4-animasi.md

@@ -1,6 +1,7 @@
 # Spike T-0.4 — Animasi ASCII 30 FPS + Toast (harmonica)
 
 > Status: ✅ **LOLOS** · Tanggal: 2026-10-15 · Mesin: Linux (PipeWire aktif), terminal pty 120×40
+> Hardware uji: AMD Ryzen 5 5600 (6C/12T), RAM 31 GiB (17 GiB available saat uji)
 
 ## Tujuan (PRD Phase 0)
 
@@ -26,6 +27,8 @@ Interaktif: `make run` → `[t]` toast (slide-in/out + auto-dismiss 2.5 dtk + kl
 | Laju tick | 30 fps | **29.1 fps** (59 tick / 2.024 dtk — jitter timer wajar) |
 | CPU fase animasi ON (shimmer tiap frame + toast) | < 3% (F-026) | **2.75%** ✅ |
 | CPU fase reduced-motion (ticker berhenti) | — | **0.50%** |
+| Memori (RSS) fase animasi ON | < 50 MB (NFR idle) | **20.9 MB** (max 21.1) ✅ |
+| Memori (RSS) fase reduced-motion | — | **20.4 MB** |
 | Output terminal fase ON | — | **9.1 KB/s** ≈ 310 B/frame (120×40) → diff renderer terbukti |
 
 ## Keputusan implementasi