fix: set default capabilities on LlamaCpp provider to unblock router

LlamaCppInferenceProvider was created with empty capabilities, causing
NoEligibleProviderException when the router requested ModelCapability.General.
FirstAvailableRoutingStrategy requires declared capabilities to cover all
requested ones — empty set satisfied nothing.

Add a DEFAULT_LLAMA_CAPABILITIES constant with General, Coding, Reasoning,
Summarization, and ToolCalling scores, and pass it through createLlamaCppProvider()
to ModelDescriptor. Existing callers get sensible defaults automatically.

This is the root cause of the 'router not connected — epic 14' placeholder:
the server-side error (capability mismatch) sent a ProtocolError instead of a
RouterResponseMessage, so the TUI never set routerConnected=true.

infrastructure/src/main/kotlin/com/correx/infrastructure/InfrastructureModule.kt

@@ -8,8 +8,10 @@ import com.correx.core.artifacts.repository.ArtifactRepository
 import com.correx.core.artifactstore.ArtifactStore
 import com.correx.core.events.EventDispatcher
 import com.correx.core.events.stores.EventStore
+import com.correx.core.inference.CapabilityScore
 import com.correx.core.inference.InferenceProvider
 import com.correx.core.inference.InferenceRouter
+import com.correx.core.inference.ModelCapability
 import com.correx.core.inference.Tokenizer
 import com.correx.core.router.DefaultRouterContextBuilder
 import com.correx.core.router.DefaultRouterFacade
@@ -53,6 +55,14 @@ object InfrastructureModule {
     private val defaultArtifactsRoot: String =
         "${System.getProperty("user.home")}/.config/correx/artifacts"
 
+    private val DEFAULT_LLAMA_CAPABILITIES: Set<CapabilityScore> = setOf(
+        CapabilityScore(ModelCapability.General, 1.0),
+        CapabilityScore(ModelCapability.Coding, 0.7),
+        CapabilityScore(ModelCapability.Reasoning, 0.6),
+        CapabilityScore(ModelCapability.Summarization, 0.8),
+        CapabilityScore(ModelCapability.ToolCalling, 0.5),
+    )
+
     fun createEventStore(artifactStore: ArtifactStore, dbPath: String = defaultDbPath): EventStore {
         val dir = java.io.File(dbPath).parentFile
         if (!dir.exists()) dir.mkdirs()
@@ -76,11 +86,13 @@ object InfrastructureModule {
         modelPath: String,
         baseUrl: String = "http://127.0.0.1:10000",
         residencyMode: ResidencyMode = ResidencyMode.PERSISTENT,
+        capabilities: Set<CapabilityScore> = DEFAULT_LLAMA_CAPABILITIES,
     ): LlamaCppInferenceProvider = LlamaCppInferenceProvider(
         descriptor = ModelDescriptor(
             modelId = modelId,
             modelPath = modelPath,
             residencyMode = residencyMode,
+            capabilities = capabilities,
         ),
         baseUrl = baseUrl,
     )