docs: mark P5-1 + search filters/recent done; add M1-M3 test steps

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

LOTUS_TESTING.md

@@ -361,6 +361,40 @@ Trigger a desktop/browser notification for a new message.
 
 ---
 
+## M. New features (this round)
+
+### M1. Search: `has:image` / `has:file` / `has:video` filters
+
+1. Open message search (in a room with shared images/files/videos in history).
+2. Run a broad search, then toggle the **Images**, **Files**, **Video** chips (in the filter bar, next to "Has link").
+
+**Expected:**
+
+- Each chip narrows the visible results to that message type; multiple active chips = union (any of them).
+- Toggling them off restores the full results. The existing room/sender/date/has-link filters still work alongside.
+- **Known limitation (by design):** filtering is client-side over already-fetched results, so the visible count can be lower than the server's total for that query — paginating/loading more pulls in more to filter. Confirm this reads acceptably.
+
+### M2. Search: recent searches
+
+1. Run a few different searches, then **clear the search box** and focus it.
+
+**Expected:** your last (up to 10) distinct searches appear as clickable chips; clicking one re-runs it. A **Clear** affordance wipes the list. The list **persists across a page refresh** (localStorage).
+
+### M3. Custom accent color (non-TDS themes) — ⚠️ needs your visual judgment
+
+1. Make sure **Lotus Terminal (TDS)** is **off**. Settings → Appearance → **Custom Accent Color** → pick a color.
+
+**Expected:**
+
+- The app's accent (buttons, selected/active states, links, primary chips) recolors to your choice **live**.
+- **Look critically at quality** (this is the part I can't verify): button **text legibility** (OnMain contrast) on the accent buttons; **hover/active** shades; and **selected-row / chip** backgrounds (the translucent "Container" tints). Try a **light** color and a **dark** color and a **saturated** one.
+  - If a dark accent makes selected-row text (OnContainer) hard to read, tell me — that's the one spot in the auto-derived palette most likely to need tuning.
+- **Reset** clears it back to the theme default.
+- Turn **Lotus Terminal ON** → the custom accent should be **ignored** (TDS fixed palette wins) and the picker shows a "non-TDS only" note; turn it back off → custom accent returns.
+- Reload → the chosen accent **persists**.
+
+---
+
 ## Priority if you're short on time
 
 1. **A4** (in-call banner) + **A3** (ringtone) — newest, most logic, hardest to reproduce.