feat(picker): the rest of the closed catalogue gets its ONLINE card too

DS18B20, the three Maxim thermocouple/RTD front-ends and the ILI9341+touch
panel are as free and as online-only as the four added a moment ago; OSS just
showed nothing for them. Same card, same pill, same self-retiring contract.

frontend/src/lib/onlineOnlyBoards.ts

@@ -318,6 +318,41 @@ export const ONLINE_ONLY_COMPONENT_ADS: OnlineOnlyComponentAd[] = [
     category: 'input',
     thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><circle cx='30' cy='30' r='26' fill='#1d2a33' stroke='#0f171d' stroke-width='1'/><circle cx='30' cy='30' r='19' fill='none' stroke='#26343e' stroke-width='6'/><circle cx='30' cy='11' r='2.6' fill='#ff5c5c'/><circle cx='43' cy='17' r='2.6' fill='#ffd35c'/><circle cx='49' cy='30' r='2.6' fill='#5cff8f'/><circle cx='43' cy='43' r='2.6' fill='#5cd8ff'/><circle cx='30' cy='49' r='2.6' fill='#7d5cff'/><circle cx='17' cy='43' r='2.6' fill='#ff5cf0'/><circle cx='11' cy='30' r='2.6' fill='#ff8f5c'/><circle cx='17' cy='17' r='2.6' fill='#b6ff5c'/><circle cx='30' cy='30' r='9' fill='#16212a' stroke='#0d141a' stroke-width='1'/></svg>",
   },
+  {
+    id: 'pro-ds18b20',
+    label: 'DS18B20 Temperature Sensor',
+    description: '1-Wire digital thermometer, -55 to +125 C. The BUS is modelled too, so several share one pin and DallasTemperature discovers every one - available in the online editor',
+    category: 'sensors',
+    thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><path d='M14 12 L14 22' stroke='#b9c0c6' stroke-width='2.4' stroke-linecap='round'/><path d='M30 12 L30 22' stroke='#b9c0c6' stroke-width='2.4' stroke-linecap='round'/><path d='M46 12 L46 22' stroke='#b9c0c6' stroke-width='2.4' stroke-linecap='round'/><circle cx='14' cy='12' r='3.4' fill='#c9a23a'/><circle cx='30' cy='12' r='3.4' fill='#c9a23a'/><circle cx='46' cy='12' r='3.4' fill='#c9a23a'/><path d='M12 50 L12 32 A18 18 0 0 1 48 32 L48 50 Z' fill='#1c1c1e' stroke='#0a0a0b' stroke-width='1.2'/><path d='M12 50 L12 34 A16 16 0 0 1 28 25 L28 50 Z' fill='#242427'/><text x='30' y='44' font-family='monospace' font-size='8' font-weight='600' fill='#e6e6e6' text-anchor='middle'>18B20</text></svg>",
+  },
+  {
+    id: 'pro-max6675',
+    label: 'MAX6675 K-Type Thermocouple',
+    description: 'K-type thermocouple up to 1024 C over SPI, the range an NTC cannot reach - available in the online editor',
+    category: 'sensors',
+    thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><rect x='7' y='6' width='46' height='34' rx='3' fill='#8f2b22' stroke='#5e1a14' stroke-width='1'/><rect x='21' y='14' width='18' height='11' rx='1.5' fill='#17171a'/><rect x='14' y='30' width='32' height='11' rx='1.5' fill='#1f7a34' stroke='#12481f' stroke-width='1'/><circle cx='22' cy='35.5' r='3' fill='#cfd6da'/><circle cx='38' cy='35.5' r='3' fill='#cfd6da'/><path d='M22 41 C22 50 26 51 30 52' fill='none' stroke='#e3c22b' stroke-width='2.2'/><path d='M38 41 C38 50 34 51 30 52' fill='none' stroke='#c0392b' stroke-width='2.2'/><rect x='28' y='51' width='20' height='5' rx='2.5' fill='#b9c0c6'/></svg>",
+  },
+  {
+    id: 'pro-max31856',
+    label: 'MAX31856 Universal Thermocouple',
+    description: 'Every thermocouple type, B included: 1000-1800 C over SPI, cold-junction compensated - available in the online editor',
+    category: 'sensors',
+    thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><rect x='5' y='6' width='50' height='34' rx='3' fill='#2b2140' stroke='#170f26' stroke-width='1'/><rect x='19' y='14' width='22' height='10' rx='1.5' fill='#17171a'/><text x='30' y='34' font-family='monospace' font-size='6' font-weight='600' fill='#a79cc4' text-anchor='middle'>BEJKNRST</text><rect x='16' y='40' width='28' height='10' rx='1.5' fill='#1f7a34' stroke='#12481f' stroke-width='1'/><circle cx='23' cy='45' r='2.7' fill='#cfd6da'/><circle cx='37' cy='45' r='2.7' fill='#cfd6da'/><path d='M23 50 C23 55 27 56 30 56' fill='none' stroke='#8d939b' stroke-width='2'/><path d='M37 50 C37 55 33 56 30 56' fill='none' stroke='#5a6068' stroke-width='2'/></svg>",
+  },
+  {
+    id: 'pro-max31865',
+    label: 'MAX31865 PT100 RTD',
+    description: 'The other lab standard: PT100 RTD over SPI, 2/3/4-wire - available in the online editor',
+    category: 'sensors',
+    thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><rect x='5' y='5' width='50' height='34' rx='3' fill='#123833' stroke='#08201d' stroke-width='1'/><rect x='17' y='13' width='20' height='10' rx='1.5' fill='#17171a'/><rect x='40' y='15' width='9' height='5' rx='1' fill='#1c1c1e'/><rect x='12' y='39' width='36' height='10' rx='1.5' fill='#1f7a34' stroke='#12481f' stroke-width='1'/><circle cx='19' cy='44' r='2.4' fill='#cfd6da'/><circle cx='27' cy='44' r='2.4' fill='#cfd6da'/><circle cx='34' cy='44' r='2.4' fill='#cfd6da'/><circle cx='41' cy='44' r='2.4' fill='#cfd6da'/><path d='M19 49 C19 54 25 55 30 55' fill='none' stroke='#c0392b' stroke-width='1.8'/><path d='M41 49 C41 54 35 55 30 55' fill='none' stroke='#e8e8e8' stroke-width='1.8'/></svg>",
+  },
+  {
+    id: 'pro-ili9341-touch',
+    label: '2.8" TFT + Touch (ILI9341 + XPT2046)',
+    description: 'A 320x240 ILI9341 panel with an XPT2046 resistive touch screen on the same SPI bus - available in the online editor',
+    category: 'displays',
+    thumbnailSvg: "<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><rect x='6' y='4' width='48' height='52' rx='3' fill='#16233a' stroke='#0b1424' stroke-width='1'/><rect x='10' y='11' width='40' height='38' rx='1.5' fill='#05070c' stroke='#243349' stroke-width='1'/><rect x='12' y='13' width='36' height='34' fill='#102030'/><circle cx='34' cy='32' r='5.5' fill='none' stroke='#5cd8ff' stroke-width='1.6'/><circle cx='34' cy='32' r='2' fill='#5cd8ff'/><rect x='16' y='17' width='16' height='3' rx='1.5' fill='#2e7dd1'/><rect x='16' y='23' width='11' height='3' rx='1.5' fill='#394a5e'/></svg>",
+  },
   {
     id: 'm5stack-chain-8x8',
     label: 'M5Stack Chain RGB Matrix (8\u00d78)',