Show the selected character's Power on the fireteam roster card

The Family-2 social roster member record carries the signed Power the
orbit fireteam row displays at +20. It was left zero, so the row read
Power 0. Write the selected character's equipment light plus artifact
bonus there, the same value the banner and character card use, and add
it to the social_roster log line.

Sunrise/src/server/bap/encrypted/push/snapshot/social_roster_snapshot.cpp

@@ -14,6 +14,7 @@
 #include "../../../../../middleware/datagen/definitions.h"
 #include "../../../../../state/account/inventory/inventory_state.h"
 #include "../../../../../state/build_data/items/item_catalog.h"
+#include "../../../../../state/equipment/light/resolution/configured_equipment_light_resolver.h"
 #include "../../../../../state/runtime/runtime.h"
 #include "internal.h"
 #include "snapshot_storage.h"
@@ -24,6 +25,8 @@ namespace {
 /** One line carries the soid, the object count and the encoded size. */
 constexpr std::size_t kReportCapacity = 160;
 
+/** Where the member record carries the signed Power the fireteam row displays. */
+constexpr std::size_t kPowerOffset = 20;
 /** Where the member record carries the emblem the panel row reads. */
 constexpr std::size_t kEmblemDefinitionOffset = 36;
 constexpr std::size_t kEmblemVariantOffset = 38;
@@ -66,6 +69,23 @@ constexpr std::uint16_t kEmptyDefinitionIndex = 0xFFFFU;
     return false;
 }
 
+/**
+ * Computes the selected character's Power, the same value the banner and character card show.
+ * @param account Account snapshot, already read under the lock by the caller.
+ * @param power Receives the equipment light plus the artifact bonus, or 0 on failure.
+ * @return False when nothing is selected or an equipped item cannot be resolved.
+ */
+[[nodiscard]] bool selected_character_power(const state::AccountState& account,
+                                            std::int32_t& power) noexcept {
+    power = 0;
+    for (std::size_t index = 0; index < account.characterCount; ++index) {
+        if (account.characters[index].selected) {
+            return state::equipment::light::resolution::character_light(account, index, power);
+        }
+    }
+    return false;
+}
+
 } // namespace
 
 /** Builds the family-two snapshot carrying the social roster directory and member record. */
@@ -93,6 +113,11 @@ bool prepare_social_roster(Scratch& scratch,
     if (!selected_emblem_definition_index(account, emblem, emblemHash)) {
         emblem = kEmptyDefinitionIndex;
     }
+    // Zero is what the row showed before any Power was written, so a failed lookup keeps it.
+    std::int32_t power = 0;
+    if (!selected_character_power(account, power)) {
+        power = 0;
+    }
 
     Prepared staged{};
     std::size_t objectCount = 0;
@@ -102,7 +127,8 @@ bool prepare_social_roster(Scratch& scratch,
     /**
      * Writes one object and stages it.
      * Both lookups match on the first qword, so the directory leads with the account soid and
-     * repeats it at +8 as the link the member record leads with. Only the member has the emblem.
+     * repeats it at +8 as the link the member record leads with. Only the member has the Power
+     * and the emblem.
      */
     const auto emit = [&](std::size_t size, std::uint32_t id, bool directory) noexcept {
         if (objectCount >= staged.objects.size() || size < kEmblemVariantOffset + sizeof emblem) {
@@ -117,6 +143,7 @@ bool prepare_social_roster(Scratch& scratch,
                         sizeof account.primarySoid);
         } else {
             std::memcpy(body.data(), &account.primarySoid, sizeof account.primarySoid);
+            std::memcpy(body.data() + kPowerOffset, &power, sizeof power);
             std::memcpy(body.data() + kEmblemDefinitionOffset, &emblem, sizeof emblem);
             std::memcpy(body.data() + kEmblemVariantOffset,
                         &kEmptyDefinitionIndex,
@@ -169,12 +196,13 @@ bool prepare_social_roster(Scratch& scratch,
     const int written = std::snprintf(line.data(),
                                       line.size(),
                                       "ev=queuez stage=social_roster result=ok soid=0x%016llX"
-                                      " objects=%zu bytes=%zu emblem=%u hash=0x%08X",
+                                      " objects=%zu bytes=%zu emblem=%u hash=0x%08X power=%d",
                                       static_cast<unsigned long long>(account.primarySoid),
                                       objectCount,
                                       rawUsed,
                                       static_cast<unsigned>(emblem),
-                                      static_cast<unsigned>(emblemHash));
+                                      static_cast<unsigned>(emblemHash),
+                                      static_cast<int>(power));
     if (written > 0) {
         core::log::write(core::log::Channel::server,
                          core::log::Level::info,