feat(brand): AP SSID WeVisto-XXXX + logo placeholder + 4-step copy

Rename the AP broadcast SSID from PictureFrame-XXXX to WeVisto-XXXX
(operation.h:ap_ssid_from_mac + main.cpp:enter_provisioning). Tests
updated to match.

Setup screens (both panels):
- Top-right header chip replaced with a draw_logo_placeholder() box —
  a 'WeVisto' text mark with a 'PLACEHOLDER' subtitle. When the real
  brand asset lands, swap the function for a paste of the file at the
  same coordinates; no layout change needed.
- Step list rewritten to Matt's spec (4 steps, not 5):
    1. Turn on your WeVisto
    2. Unlock your phone
    3. Scan QR 1  — This will connect your phone to the WeVisto
    4. Scan QR 2  — This will open the WeVisto setup page
  Step 5 (type WiFi password) lived only in the on-panel guide; the
  user does that on the phone via the captive portal, where the
  prompt is already explicit.
- Regenerated both panels' setup_bg / ap_bg / ap_bg_retry assets via
  the gen_screens scripts.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/gen_screens.py

@@ -111,6 +111,32 @@ def leave_qr_white(draw, qr_x, qr_y, qr_px):
     """Blank the QR overlay region so firmware can write the real QR."""
     draw.rectangle([qr_x, qr_y, qr_x+qr_px-1, qr_y+qr_px-1], fill=WH)
 
+# ── Logo placeholder ─────────────────────────────────────────────────────────
+# Top-right brand placeholder for both setup screens. When the real logo
+# lands, replace draw_logo_placeholder() with a paste of assets/logo.png
+# (or similar) at the same coordinates so the layout stays stable.
+LOGO_W = 200
+LOGO_H = 40
+LOGO_X = 800 - LOGO_W - 16
+LOGO_Y = (52 - LOGO_H) // 2  # BAR_H=52
+
+def draw_logo_placeholder(img):
+    draw = ImageDraw.Draw(img)
+    draw.rectangle([LOGO_X, LOGO_Y, LOGO_X + LOGO_W - 1, LOGO_Y + LOGO_H - 1], fill=WH)
+    draw.rectangle([LOGO_X, LOGO_Y, LOGO_X + LOGO_W - 1, LOGO_Y + LOGO_H - 1],
+                   outline=BK, width=2)
+    f_logo = ttf("DejaVuSans-Bold.ttf", 18)
+    bb = draw.textbbox((0, 0), "WeVisto", font=f_logo)
+    tw = bb[2] - bb[0]
+    draw.text((LOGO_X + (LOGO_W - tw) // 2, LOGO_Y + 4), "WeVisto",
+              font=f_logo, fill=BK)
+    f_hint = ttf("DejaVuSans-Bold.ttf", 8)
+    bb = draw.textbbox((0, 0), "PLACEHOLDER", font=f_hint)
+    pw = bb[2] - bb[0]
+    draw.text((LOGO_X + (LOGO_W - pw) // 2, LOGO_Y + LOGO_H - 12),
+              "PLACEHOLDER", font=f_hint, fill=BK)
+
+
 def text_center(draw, cx, y, text, font, fill):
     bb = draw.textbbox((0,0), text, font=font)
     tw = bb[2]-bb[0]
@@ -200,14 +226,8 @@ def gen_ap(accent=YL, header="SETUP MODE  —  STEP 1 OF 2", qr_label="SCAN TO C
     draw.rectangle([0, 0, W-1, BAR_H-1], fill=accent)
     draw.text((24, 18), header, font=F_BAR, fill=BK)
 
-    # Right chip: black box with device SSID
-    chip_x, chip_y = 498, 11
-    chip_text = "PictureFrame-91F8"
-    bb = draw.textbbox((0,0), chip_text, font=F_CHIP)
-    chip_w = bb[2]-bb[0] + 22
-    chip_x2 = chip_x + chip_w
-    draw.rectangle([chip_x, chip_y, chip_x2, BAR_H-12], fill=BK)
-    draw.text((chip_x+11, chip_y+7), chip_text, font=F_CHIP, fill=accent)
+    # Logo placeholder top-right (replaces per-device SSID chip)
+    draw_logo_placeholder(img)
 
     # ── Panel dividers ────────────────────────────────────────────
     draw.rectangle([DIV1_X, BODY_Y, DIV1_X+1, H-1], fill=BK)
@@ -230,11 +250,10 @@ def gen_ap(accent=YL, header="SETUP MODE  —  STEP 1 OF 2", qr_label="SCAN TO C
     # NEW WORDING 2026-05-09 — beta tester called the prior copy
     # "Chinglish." Tighter, plainer, no Safari-specific reference.
     steps = [
-        ("Plug in the frame",            ""),
-        ("Unlock your phone",            ""),
-        ("Scan QR 1",                    "joins your phone to PictureFrame"),
-        ("Scan QR 2",                    "opens the setup page"),
-        ("Type your home WiFi password", "and tap Connect"),
+        ("Turn on your WeVisto", ""),
+        ("Unlock your phone",    ""),
+        ("Scan QR 1",            "This will connect your phone to the WeVisto"),
+        ("Scan QR 2",            "This will open the WeVisto setup page"),
     ]
     sy = BODY_Y + 95
     step_pitch = 32
@@ -345,13 +364,8 @@ def gen_setup():
         draw.rectangle([bx + i*8, BAR_H//2 - bh//2, bx+i*8+5, BAR_H//2 + bh//2], fill=WH)
     draw.text((bx+38, 18), "WIFI CONNECTED  —  STEP 2 OF 2", font=F_BAR, fill=WH)
 
-    # Right IP chip
-    ip_text = "192.168.x.x"
-    bb = draw.textbbox((0,0), ip_text, font=F_CHIP)
-    chip_w = bb[2]-bb[0] + 22
-    chip_x = W - chip_w - 20
-    draw.rectangle([chip_x, 11, chip_x+chip_w, BAR_H-12], fill=WH)
-    draw.text((chip_x+11, 18), ip_text, font=F_CHIP, fill=GR)
+    # Logo placeholder top-right (replaces IP chip)
+    draw_logo_placeholder(img)
 
     # ── Panel dividers ────────────────────────────────────────────
     draw.rectangle([DIV1_X, BODY_Y, DIV1_X+1, H-1], fill=BK)