refactor: rename the router subsystem to Talkie

The 'router' name was misleading — it's the always-on conversational front-end
(CHAT triage + STEERING into a running workflow), not a routing layer, and it's
distinct from InferenceRouter. Rename core:router -> core:talkie, package
com.correx.core.router -> com.correx.core.talkie, and RouterFacade/Config/State/
Repository/ContextBuilder/Projector/Reducer/Response -> Talkie*. Config section
[router] -> [talkie] (legacy [router] still read as fallback).

Persisted wire formats are preserved: ChatTurnRole.ROUTER and the
RouterNarrationEvent @SerialName("RouterNarration") stay, so existing event
logs still replay. RouterNarrationEvent the class is now TalkieNarrationEvent.

infrastructure/build.gradle

@@ -7,7 +7,7 @@ plugins {
 dependencies {
     implementation project(":core:tools")
     implementation project(":core:events")
-    implementation project(":core:router")
+    implementation project(":core:talkie")
     implementation project(":core:inference")
     implementation project(":core:approvals")
     implementation project(":core:sessions")

infrastructure/router/build.gradle

@@ -5,7 +5,7 @@ plugins {
 }
 
 dependencies {
-    implementation project(':core:router')
+    implementation project(':core:talkie')
     implementation project(':core:events')
     testImplementation "org.junit.jupiter:junit-jupiter"
     testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test"

infrastructure/router/turbovec/build.gradle

@@ -5,7 +5,7 @@ plugins {
 }
 
 dependencies {
-    implementation project(':core:router')
+    implementation project(':core:talkie')
     implementation project(':core:sessions')
     implementation project(':core:events')
     testImplementation "org.junit.jupiter:junit-jupiter"

infrastructure/router/turbovec/src/main/kotlin/com/correx/infrastructure/router/turbovec/TurboVecL3MemoryStore.kt

@@ -1,9 +1,9 @@
 package com.correx.infrastructure.router.turbovec
 
-import com.correx.core.router.l3.L3Hit
-import com.correx.core.router.l3.L3MemoryEntry
-import com.correx.core.router.l3.L3Query
-import com.correx.core.router.l3.RehydratableL3MemoryStore
+import com.correx.core.talkie.l3.L3Hit
+import com.correx.core.talkie.l3.L3MemoryEntry
+import com.correx.core.talkie.l3.L3Query
+import com.correx.core.talkie.l3.RehydratableL3MemoryStore
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 import kotlinx.coroutines.withTimeout

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

@@ -22,17 +22,17 @@ import com.correx.core.inference.InferenceRouter
 import com.correx.core.inference.ModelCapability
 import com.correx.core.inference.NoopEmbedder
 import com.correx.core.inference.Tokenizer
-import com.correx.core.router.DefaultRouterContextBuilder
-import com.correx.core.router.DefaultRouterFacade
-import com.correx.core.router.IdeaReader
-import com.correx.core.router.DefaultRouterReducer
-import com.correx.core.router.DefaultRouterRepository
-import com.correx.core.router.RouterFacade
-import com.correx.core.router.RouterProjector
-import com.correx.core.router.l3.InMemoryL3MemoryStore
-import com.correx.core.router.l3.L3MemoryStore
-import com.correx.core.router.model.RouterConfig
-import com.correx.core.router.model.WorkflowSummary
+import com.correx.core.talkie.DefaultTalkieContextBuilder
+import com.correx.core.talkie.DefaultTalkieFacade
+import com.correx.core.talkie.IdeaReader
+import com.correx.core.talkie.DefaultTalkieReducer
+import com.correx.core.talkie.DefaultTalkieRepository
+import com.correx.core.talkie.TalkieFacade
+import com.correx.core.talkie.TalkieProjector
+import com.correx.core.talkie.l3.InMemoryL3MemoryStore
+import com.correx.core.talkie.l3.L3MemoryStore
+import com.correx.core.talkie.model.TalkieConfig
+import com.correx.core.talkie.model.WorkflowSummary
 import com.correx.core.events.types.SessionId
 import com.correx.core.sessions.projections.replay.DefaultEventReplayer
 import com.correx.core.tools.contract.Tool
@@ -306,22 +306,22 @@ object InfrastructureModule {
         }
     }
 
-    fun createRouterFacade(
+    fun createTalkieFacade(
         eventStore: EventStore,
         inferenceRouter: InferenceRouter,
-        config: RouterConfig = RouterConfig(),
+        config: TalkieConfig = TalkieConfig(),
         tokenizer: Tokenizer? = null,
         embedder: Embedder = createNoopEmbedder(),
         l3MemoryStore: L3MemoryStore = createInMemoryL3MemoryStore(),
         workflowSummaryProvider: () -> List<WorkflowSummary> = { emptyList() },
         sessionProfileProvider: suspend (SessionId) -> String? = { null },
-    ): RouterFacade {
-        val reducer = DefaultRouterReducer()
-        val projector = RouterProjector(reducer)
+    ): TalkieFacade {
+        val reducer = DefaultTalkieReducer()
+        val projector = TalkieProjector(reducer)
         val replayer = DefaultEventReplayer(eventStore, projector)
-        val repository = DefaultRouterRepository(replayer)
+        val repository = DefaultTalkieRepository(replayer)
         val ideaReader = IdeaReader(eventStore)
-        val contextBuilder = DefaultRouterContextBuilder(config, tokenizer, ideaProvider = { ideaReader.activeIdeas() })
-        return DefaultRouterFacade(repository, contextBuilder, inferenceRouter, eventStore, config, null, embedder, l3MemoryStore, workflowSummaryProvider, sessionProfileProvider)
+        val contextBuilder = DefaultTalkieContextBuilder(config, tokenizer, ideaProvider = { ideaReader.activeIdeas() })
+        return DefaultTalkieFacade(repository, contextBuilder, inferenceRouter, eventStore, config, null, embedder, l3MemoryStore, workflowSummaryProvider, sessionProfileProvider)
     }
 }