feat: 跨实例同步移植 WIP 检查点（第1轮+2a+2b+synced_servers）

从 Axolotl 移植跨实例同步子系统，当前进度：

- 第1轮：synced_options/files.rs + mod.rs 骨架，state 层补齐 SyncedOption/InstanceSyncedOptions/CanonicalValue/GameOptionKind 等

- 2a：game_options 的 api_types/options_file/catalog(10文件)

- 2b：game_options 除 resource_pack_options/local_settings_editor 外的全部（settings_editor/write_shared_settings/fullscreen/launch_overrides/instance_support/read_instance_changes/pack_updates/source_selection + locales/5文件）；State 补 synced_options_lock/game_locale_indexer/lock_synced_options

- synced_servers：6 文件全部搬入

- 35+20 处 sqlx::query! 宏改写为非宏 query+bind

已知未完成：synced_servers::operations 依赖 synced_options::instance_option_supported（属 orchestration，第5轮），当前编译不通。

packages/app-lib/src/state/instances/model/game_options.rs

@@ -0,0 +1,52 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[serde(tag = "type", content = "value", rename_all = "snake_case")]
+pub enum CanonicalValue {
+    Bool(bool),
+    Integer(i64),
+    Decimal(String),
+    Enum(String),
+    Text(String),
+    StringList(Vec<String>),
+    KeyBinding(String),
+    ExternalRaw(String),
+}
+
+impl CanonicalValue {
+    pub(crate) fn type_name(&self) -> &'static str {
+        match self {
+            Self::Bool(_) => "bool",
+            Self::Integer(_) => "integer",
+            Self::Decimal(_) => "decimal",
+            Self::Enum(_) => "enum",
+            Self::Text(_) => "text",
+            Self::StringList(_) => "string_list",
+            Self::KeyBinding(_) => "key_binding",
+            Self::ExternalRaw(_) => "external_raw",
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum GameOptionKind {
+    Vanilla,
+    External,
+}
+
+#[derive(Clone)]
+pub(crate) struct StoredOption {
+    pub(crate) option_id: String,
+    pub(crate) kind: GameOptionKind,
+    pub(crate) raw_key: Option<String>,
+    pub(crate) value: Option<CanonicalValue>,
+    pub(crate) seeded: bool,
+    pub(crate) revision: u64,
+}
+
+#[derive(Clone)]
+pub(crate) struct StoredPreference {
+    pub(crate) enabled: bool,
+    pub(crate) revision: u64,
+}