diff --git a/.coderabbit.yaml b/.coderabbit.yaml
index e2ff6cf..0f3084e 100644
--- a/.coderabbit.yaml
+++ b/.coderabbit.yaml
@@ -6,7 +6,6 @@
 language: "ko-KR"
 early_access: false
 enable_free_tier: true
-
 tone_instructions: "Apple 플랫폼 시니어 개발자 관점으로, 원인과 개선안을 짧고 명확히 제시하며 개선 중심으로 리뷰하세요."
 
 # =============================================================================
diff --git a/Projects/DVData/Sources/Storage/Local/Models/AppAuditLog.swift b/Projects/DVData/Sources/Storage/Local/Models/AppAuditLog.swift
new file mode 100644
index 0000000..ad1a92a
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/AppAuditLog.swift
@@ -0,0 +1,25 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class AppAuditLog {
+        @Attribute(.unique) var id: UUID
+        var eventType: String
+        var actorContext: String
+        var occurredAt: Date
+
+        init(
+            id: UUID = UUID(),
+            eventType: String,
+            actorContext: String,
+            occurredAt: Date = Date()
+        ) {
+            self.id = id
+            self.eventType = eventType
+            self.actorContext = actorContext
+            self.occurredAt = occurredAt
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/AppSchema.swift b/Projects/DVData/Sources/Storage/Local/Models/AppSchema.swift
new file mode 100644
index 0000000..bbde077
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/AppSchema.swift
@@ -0,0 +1,20 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import SwiftData
+
+enum SwiftDataModel { }
+
+extension Schema {
+    private static let schemaVersion: Schema.Version = Version(1, 0, 0)
+
+    static let appSchema = Schema([
+        SwiftDataModel.Project.self,
+        SwiftDataModel.Secret.self,
+        SwiftDataModel.SecretProjectLink.self,
+        SwiftDataModel.SecretPayload.self,
+        SwiftDataModel.SecretMetadata.self,
+        SwiftDataModel.SecretAuditLog.self,
+        SwiftDataModel.AppAuditLog.self,
+        SwiftDataModel.BackupRecord.self,
+    ], version: schemaVersion)
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/BackupRecord.swift b/Projects/DVData/Sources/Storage/Local/Models/BackupRecord.swift
new file mode 100644
index 0000000..0a543dd
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/BackupRecord.swift
@@ -0,0 +1,37 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class BackupRecord {
+        @Attribute(.unique) var id: UUID
+        var fileName: String
+        var filePath: String
+        var backupScope: String
+        var hasIndependentPassword: Bool
+        var keyTag: String
+        var totalSecrets: Int
+        var createdAt: Date
+
+        init(
+            id: UUID = UUID(),
+            fileName: String,
+            filePath: String,
+            backupScope: String,
+            hasIndependentPassword: Bool,
+            keyTag: String,
+            totalSecrets: Int,
+            createdAt: Date = Date()
+        ) {
+            self.id = id
+            self.fileName = fileName
+            self.filePath = filePath
+            self.backupScope = backupScope
+            self.hasIndependentPassword = hasIndependentPassword
+            self.keyTag = keyTag
+            self.totalSecrets = totalSecrets
+            self.createdAt = createdAt
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/Project.swift b/Projects/DVData/Sources/Storage/Local/Models/Project.swift
new file mode 100644
index 0000000..33887e4
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/Project.swift
@@ -0,0 +1,34 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class Project {
+        @Attribute(.unique) var id: UUID
+        var name: String
+        var createdAt: Date
+        var updatedAt: Date
+
+        @Relationship(deleteRule: .cascade, inverse: \SwiftDataModel.SecretProjectLink.project)
+        var secretLinks: [SecretProjectLink]
+
+        /// `SecretProjectLink`를 통해 연결된 시크릿 목록을 반환하는 편의 접근자입니다.
+        var secrets: [Secret] {
+            secretLinks.map(\.secret)
+        }
+
+        init(
+            id: UUID = UUID(),
+            name: String,
+            createdAt: Date = Date(),
+            updatedAt: Date = Date()
+        ) {
+            self.id = id
+            self.name = name
+            self.createdAt = createdAt
+            self.updatedAt = updatedAt
+            self.secretLinks = []
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/Secret.swift b/Projects/DVData/Sources/Storage/Local/Models/Secret.swift
new file mode 100644
index 0000000..6861923
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/Secret.swift
@@ -0,0 +1,71 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import SwiftData
+import Foundation
+
+extension SwiftDataModel {
+    @Model final class Secret {
+        @Attribute(.unique) var id: UUID
+        var name: String
+        var secretType: String
+        var subType: String?
+        var service: String?
+        var environment: String?
+        var expiresAt: Date?
+        var memo: String?
+        var liked: Bool
+        var deletedAt: Date?
+        var createdAt: Date
+        var updatedAt: Date
+
+        @Relationship(deleteRule: .cascade, inverse: \SwiftDataModel.SecretProjectLink.secret)
+        var projectLinks: [SecretProjectLink]
+
+        @Relationship(deleteRule: .cascade, inverse: \SwiftDataModel.SecretPayload.secret)
+        var payload: SecretPayload?
+
+        @Relationship(deleteRule: .cascade, inverse: \SwiftDataModel.SecretMetadata.secret)
+        var metadata: SecretMetadata?
+
+        @Relationship(deleteRule: .nullify, inverse: \SwiftDataModel.SecretAuditLog.secret)
+        var auditLogs: [SecretAuditLog]
+
+        /// `SecretProjectLink`를 통해 연결된 프로젝트 목록을 반환하는 편의 접근자입니다.
+        var projects: [Project] {
+            projectLinks.map(\.project)
+        }
+
+        init(
+            secretId: UUID = UUID(),
+            name: String,
+            secretType: String,
+            subType: String? = nil,
+            service: String? = nil,
+            environment: String? = nil,
+            expiresAt: Date? = nil,
+            memo: String? = nil,
+            liked: Bool = false,
+            deletedAt: Date? = nil,
+            createdAt: Date = Date(),
+            updatedAt: Date? = nil
+        ) {
+            let initialCreatedAt = createdAt
+            self.secretId = secretId
+            self.name = name
+            self.secretType = secretType
+            self.subType = subType
+            self.service = service
+            self.environment = environment
+            self.expiresAt = expiresAt
+            self.memo = memo
+            self.liked = liked
+            self.deletedAt = deletedAt
+            self.createdAt = initialCreatedAt
+            self.updatedAt = updatedAt ?? initialCreatedAt
+            self.projectLinks = []
+            self.payload = nil
+            self.metadata = nil
+            self.auditLogs = []
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/SecretAuditLog.swift b/Projects/DVData/Sources/Storage/Local/Models/SecretAuditLog.swift
new file mode 100644
index 0000000..b5968df
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/SecretAuditLog.swift
@@ -0,0 +1,41 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class SecretAuditLog {
+        @Attribute(.unique) var id: UUID
+        var eventType: String
+        var actorContext: String
+        var isSuspicious: Bool
+        var occurredAt: Date
+        
+        // MARK: - Snapshot field
+        var secretSnapshotId: UUID
+        var secretNameSnapshot: String
+        var secretTypeSnapshot: String
+
+        @Relationship
+        var secret: Secret?
+
+        init(
+            id: UUID = UUID(),
+            eventType: String,
+            actorContext: String,
+            isSuspicious: Bool = false,
+            occurredAt: Date = Date(),
+            secret: Secret
+        ) {
+            self.id = id
+            self.eventType = eventType
+            self.actorContext = actorContext
+            self.isSuspicious = isSuspicious
+            self.occurredAt = occurredAt
+            self.secretSnapshotId = secret.id
+            self.secretNameSnapshot = secret.name
+            self.secretTypeSnapshot = secret.secretType
+            self.secret = secret
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/SecretMetadata.swift b/Projects/DVData/Sources/Storage/Local/Models/SecretMetadata.swift
new file mode 100644
index 0000000..284b29f
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/SecretMetadata.swift
@@ -0,0 +1,27 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class SecretMetadata {
+        @Attribute(.unique) var id: UUID
+        var metadataJSON: Data
+        var schemaVersion: Int
+
+        @Relationship
+        var secret: Secret
+
+        init(
+            id: UUID = UUID(),
+            metadataJSON: Data,
+            schemaVersion: Int,
+            secret: Secret
+        ) {
+            self.id = id
+            self.metadataJSON = metadataJSON
+            self.schemaVersion = schemaVersion
+            self.secret = secret
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/SecretPayload.swift b/Projects/DVData/Sources/Storage/Local/Models/SecretPayload.swift
new file mode 100644
index 0000000..f503ce0
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/SecretPayload.swift
@@ -0,0 +1,30 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class SecretPayload {
+        @Attribute(.unique) var id: UUID
+        var encryptedData: Data
+        var keyTag: String
+        var schemaVersion: Int
+
+        @Relationship
+        var secret: Secret
+
+        init(
+            id: UUID = UUID(),
+            encryptedData: Data,
+            keyTag: String,
+            schemaVersion: Int,
+            secret: Secret
+        ) {
+            self.id = id
+            self.encryptedData = encryptedData
+            self.keyTag = keyTag
+            self.schemaVersion = schemaVersion
+            self.secret = secret
+        }
+    }
+}
diff --git a/Projects/DVData/Sources/Storage/Local/Models/SecretProjectLink.swift b/Projects/DVData/Sources/Storage/Local/Models/SecretProjectLink.swift
new file mode 100644
index 0000000..08d18aa
--- /dev/null
+++ b/Projects/DVData/Sources/Storage/Local/Models/SecretProjectLink.swift
@@ -0,0 +1,28 @@
+// Copyright © 2026 Devault. All rights reserved
+
+import Foundation
+import SwiftData
+
+extension SwiftDataModel {
+    @Model final class SecretProjectLink {
+        @Attribute(.unique) var linkKey: String
+        var linkedAt: Date
+
+        @Relationship
+        var project: Project
+
+        @Relationship
+        var secret: Secret
+
+        init(
+            project: Project,
+            secret: Secret,
+            linkedAt: Date = Date()
+        ) {
+            self.linkKey = "\(project.id.uuidString):\(secret.id.uuidString)"
+            self.linkedAt = linkedAt
+            self.project = project
+            self.secret = secret
+        }
+    }
+}