feat(server,kernel): repo-map indexer + droppable L3 context injection

core/config/src/main/kotlin/com/correx/core/config/ConfigLoader.kt

@@ -418,6 +418,9 @@ object ConfigLoader {
             enabled = asBoolean(projectSection["enabled"], false),
             root = asString(projectSection["root"], ""),
             memoryK = asInt(projectSection["memory_k"], 5),
+            maxDepth = asInt(projectSection["max_depth"], 4),
+            ignoreGlobs = asStringList(projectSection["ignore_globs"]).ifEmpty { ProjectConfig.DEFAULT_IGNORES },
+            injectTopK = asInt(projectSection["inject_top_k"], 30),
         )
 
         val modelsSettings = ModelsSettings(

core/config/src/main/kotlin/com/correx/core/config/CorrexConfig.kt

@@ -26,7 +26,16 @@ data class ProjectConfig(
     val enabled: Boolean = false,
     val root: String = "",
     val memoryK: Int = 5,
-)
+    val maxDepth: Int = 4,
+    val ignoreGlobs: List<String> = DEFAULT_IGNORES,
+    val injectTopK: Int = 30,
+) {
+    companion object {
+        val DEFAULT_IGNORES: List<String> = listOf(
+            ".git", "node_modules", "build", "target", ".gradle", "dist", ".idea", ".opencode",
+        )
+    }
+}
 
 /**
  * A user-declared artifact kind. [schemaPath] points to a JSON file holding the