docs: mark P5-2 + pinned filter done; add M4/M5 test steps

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

LOTUS_TESTING.md

@@ -395,6 +395,18 @@ Trigger a desktop/browser notification for a new message.
 
 ---
 
+### M4. Search: "Pinned only" filter
+
+In message search, toggle the **Pinned** chip.
+**Expected:** results narrow to messages currently pinned in their room; composes with the Images/Files/Video chips and room/sender/date filters; toggling off restores results. It also narrows the **encrypted/local-cache** results section (not just server results). Needs a room with actually pinned messages.
+
+### M5. New theme presets (Cyberpunk / Ocean / Blood Red / Classic Matrix / Midnight) — ⚠️ visual judgment
+
+Settings → Appearance → theme picker → try each of the 5 new themes.
+**Expected:** each applies a complete, legible dark palette. Code review computed WCAG contrast and all pass AA, but **eyeball these specifically**: **Midnight** (lowest-contrast accent `#6b7ca8` — selected/focus states), **Classic Matrix** (green accents, light-green body text on near-black), **Blood Red** (white-ish text on bright-red buttons). Confirm Success/Warning/Critical (save/leave/delete) still look correctly green/amber/red, not recolored. Switching back to a stock theme should fully revert.
+
+---
+
 ## Priority if you're short on time
 
 1. **A4** (in-call banner) + **A3** (ringtone) — newest, most logic, hardest to reproduce.

LOTUS_TODO.md

@@ -220,7 +220,7 @@ Features:
 **Remaining for parity with Discord/Slack:**
 
 - [x] `has:image` / `has:file` / `has:video` — msgtype filters (client-side post-filter) ⚠️ UNTESTED
-- [ ] Pinned messages filter
+- [x] Pinned messages filter (client-side, composes with msgtype) ⚠️ UNTESTED
 - [x] Recent searches / search history (last 10, localStorage) ⚠️ UNTESTED
 
 ---
@@ -285,7 +285,7 @@ Features:
 
 ---
 
-### [ ] P5-2 · Additional Color Theme Presets
+### [x] P5-2 · Additional Color Theme Presets ⚠️ UNTESTED
 
 **What:** 5 new one-click theme presets alongside TDS. Each must be a complete, polished system with proper contrast ratios (WCAG AA). All implemented as vanilla-extract themes matching the existing TDS pattern.