Hide superseded observer profiles in picker

docs/_javascript/firmware_picker.js

@@ -502,6 +502,26 @@
     });
   }
 
+  function omitLegacyObserverCompatibilityProfiles(profiles) {
+    const targets = new Set((profiles || []).map(function (profile) {
+      return String(profile && profile.target || "").toLowerCase();
+    }));
+
+    return (profiles || []).filter(function (profile) {
+      const target = String(profile && profile.target || "");
+      // Same-partition ESP32 migrations publish the ordinary target's Full
+      // image with its established mOTA identity. The former observer-named
+      // Full image remains in the release for deployed devices that still use
+      // that identity, but it is not a second picker choice when the exact
+      // successor is present. Keep an unmatched observer image visible: it
+      // may still be the only compatible recipe for that hardware/role.
+      const successor = target.replace(
+        /_observer_mqtt_?(?=-full-usb-wifi$)/i, ""
+      );
+      return successor === target || !targets.has(successor.toLowerCase());
+    });
+  }
+
   function applyFullCompanionCapabilities(profiles) {
     return (profiles || []).map(function (profile) {
       if (!isFullCompanion(profile)) return profile;
@@ -681,10 +701,12 @@
     }).filter(function (profile) {
       return !isHiddenLegacyProfile(profile);
     });
-    const profiles = applyMergedStandardUsbLoggingCapabilities(
-      applyMergedRak4631RepeaterCapabilities(
-        omitTransportsReplacedByFull(
-          applyFullCompanionCapabilities(visibleProfiles)
+    const profiles = omitLegacyObserverCompatibilityProfiles(
+      applyMergedStandardUsbLoggingCapabilities(
+        applyMergedRak4631RepeaterCapabilities(
+          omitTransportsReplacedByFull(
+            applyFullCompanionCapabilities(visibleProfiles)
+          )
         )
       )
     ).sort(function (a, b) {
@@ -1773,6 +1795,8 @@
       applyFullCompanionCapabilities,
     canonicalHardware: canonicalHardware,
     omitTransportsReplacedByFull: omitTransportsReplacedByFull,
+    omitLegacyObserverCompatibilityProfiles:
+      omitLegacyObserverCompatibilityProfiles,
     omitTransportsReplacedByDualCdcFull:
       omitTransportsReplacedByFull,
     omitNrf52TransportsReplacedByFull:

docs/firmware_picker.md

@@ -414,6 +414,12 @@ off and the normal ASCII-to-binary mode switch occurs. nRF52 Full Companion
 retains its optional dedicated interface `02`.
 Exact filename search still finds old aliases from earlier releases.
 
+For same-partition ESP32 infrastructure migrations, the picker similarly
+recommends the ordinary target's exact-identity Full image when it is present.
+The former observer-named Full image remains available through exact filename
+search for deployed devices that still use that mOTA identity; it is not shown
+as a second recommended configuration.
+
 ## Maintaining the runtime directions
 
 The online picker and downloadable HTML use the same command renderer.

test/test_firmware_picker.js

@@ -545,6 +545,32 @@ assert(picker.profileMatchesFacets(mqtt, {
   feature: "full",
 }));
 
+// Phase one of the same-partition ESP32 migration keeps the legacy observer
+// artifact downloadable for its distinct deployed mOTA identity, but offers
+// the ordinary target's exact-identity Full successor in the picker. An
+// unmatched observer profile remains visible.
+const observerMigrationCatalog = picker.buildCatalog([
+  release(family, "2026-09-18T12:00:00Z", [
+    asset("Heltec_v3_repeater-full-usb-wifi-ota-" + family + ".bin"),
+    asset(
+      "Heltec_v3_repeater_observer_mqtt-full-usb-wifi-ota-" +
+        family + ".bin"
+    ),
+    asset(
+      "Heltec_v3_room_server_observer_mqtt-full-usb-wifi-ota-" +
+        family + ".bin"
+    ),
+  ]),
+]);
+assert.strictEqual(observerMigrationCatalog.rows.length, 3);
+assert.deepStrictEqual(
+  observerMigrationCatalog.profiles.map(function (item) { return item.target; }),
+  [
+    "Heltec_v3_repeater-full-usb-wifi",
+    "Heltec_v3_room_server_observer_mqtt-full-usb-wifi",
+  ]
+);
+
 const fullCompanionSteps = picker.installSteps(v4Full, "merged-bin");
 assert(fullCompanionSteps.some(function (step) {
   return step.includes("usb.logging");