chore(r8): remove redundant keep rules covered by consumer rules

Removes explicit -keep/-dontwarn wildcards whose behavior is already
provided by the library's own bundled consumer-rules.pro, by Room's
generated static references, or by narrower annotation-targeted keeps.
The merged R8 configuration shrinks by 34 lines (1981→1947 googleRelease,
1653→1619 fdroidRelease), giving R8 more tree-shaking freedom.

Removed (covered by library-bundled consumer rules):
- kotlin.Metadata, kotlin.reflect.**, kotlin.coroutines.Continuation,
  kotlinx.coroutines.** (kotlin-stdlib + kotlinx-coroutines-core)
- androidx.datastore.**, androidx.paging.**, androidx.lifecycle.**,
  androidx.navigation3.**, androidx.sqlite.**
- coil3.**, okio.**, co.touchlab.kermit.**,
  com.mikepenz.aboutlibraries.**, com.mikepenz.markdown.**,
  com.juul.kable.**, io.ktor.**, io.ktor.client.engine.java.**
  (HttpClientEngineFactory ServiceLoader keep retained)

Room (room3) narrowed:
- Dropped org.meshtastic.core.database.{dao,entity,Converters}.** and
  **_Impl wildcards. RoomDatabaseConstructor +
  MeshtasticDatabaseConstructor/MeshtasticDatabase keeps retained.
  Room 3.0 KMP generates static references rather than reflective
  lookups, so reachable DAO/entity/_Impl code survives tree-shaking.

Wire protobuf narrowed:
- Dropped com.squareup.wire.**, org.meshtastic.proto.**, meshtastic.**
  wildcards and deleted core/proto/consumer-rules.pro (20 per-class keeps).
- Replaced with targeted -keepclassmembers for ADAPTER fields on
  Message subclasses and ProtoAdapter member preservation. Verified
  no Class.forName lookups into org.meshtastic.proto namespace.

Meshtastic model + DI:
- Dropped org.meshtastic.core.model.** wildcard and deleted
  core/model/consumer-rules.pro (DataPacket is @CommonParcelize'd;
  no reflective access to core.model).
- Replaced org.meshtastic.**.di.** wildcard with a narrow
  @KoinViewModel class annotation keep (the @Module, @ComponentScan,
  @Single, @Factory keeps above already cover the rest of Koin).

Compose resources refinement:
- Narrowed org.meshtastic.core.resources.** to Res + Res$* members
  only (sufficient for the fdroid startup-crash workaround in #5146).

Intentionally retained (documented workarounds / policy):
- -dontoptimize, -dontobfuscate, -printconfiguration
- All Koin annotation keeps + org.koin.**
- kotlinx-serialization @Serializable keeps
- Room RoomDatabaseConstructor + MeshtasticDatabase(-Constructor)
- Ktor HttpClientEngineFactory ServiceLoader keep
- Desktop MainKt + org.meshtastic.desktop.** entry points
- All -dontwarn rules for JVM/Android platform gaps
- app/proguard-rules.pro Compose runtime/ui/animation/foundation/
  material3 keeps (defence-in-depth with -dontoptimize; may interact
  with the parallel CMP freeze RCA investigation).

Verified:
- ./gradlew :app:assembleFdroidRelease — SUCCESS (after each batch)
- ./gradlew :app:assembleGoogleRelease — SUCCESS
- ./gradlew spotlessApply detekt — SUCCESS
- :desktop:createReleaseDistributable — pre-existing failure on
  origin/main (Vico/Skia warnings), unrelated to these changes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

core/model/consumer-rules.pro

@@ -1,2 +0,0 @@
--keep class org.meshtastic.core.model.DataPacket
--keep class org.meshtastic.core.model.DataPacket$CREATOR

core/proto/consumer-rules.pro

@@ -1,43 +0,0 @@
-# Core proto classes required for packet handling and serialization
-# FromRadio and related message types (primary packet container)
--keep class org.meshtastic.proto.FromRadio
--keep class org.meshtastic.proto.Data
--keep class org.meshtastic.proto.MeshPacket
--keep class org.meshtastic.proto.LogRecord
-
-# Message type payloads (handled in packet routing)
--keep class org.meshtastic.proto.AdminMessage
--keep class org.meshtastic.proto.StoreAndForward
--keep class org.meshtastic.proto.StoreForwardPlusPlus
--keep class org.meshtastic.proto.Routing
-
-# User and Node information
--keep class org.meshtastic.proto.User
--keep class org.meshtastic.proto.NeighborInfo
--keep class org.meshtastic.proto.Neighbor
-
-# Location and environment data
--keep class org.meshtastic.proto.Position
--keep class org.meshtastic.proto.Waypoint
--keep class org.meshtastic.proto.StatusMessage
-
-# Telemetry data types
--keep class org.meshtastic.proto.Telemetry
--keep class org.meshtastic.proto.DeviceMetrics
--keep class org.meshtastic.proto.EnvironmentMetrics
--keep class org.meshtastic.proto.AirQualityMetrics
--keep class org.meshtastic.proto.PowerMetrics
--keep class org.meshtastic.proto.LocalStats
--keep class org.meshtastic.proto.HostMetrics
-
-# Other data
--keep class org.meshtastic.proto.Paxcount
--keep class org.meshtastic.proto.DeviceMetadata
-
-# Configuration classes
--keep class org.meshtastic.proto.ChannelSet
--keep class org.meshtastic.proto.LocalConfig
--keep class org.meshtastic.proto.Config
--keep class org.meshtastic.proto.ModuleConfig
--keep class org.meshtastic.proto.Channel
--keep class org.meshtastic.proto.ClientNotification