feat(hololake): establish clean v1 personal language shell

product-source/hololake-clean-desktop/src-tauri/src/model.rs

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+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Channel {
+    pub channel_id: String,
+    pub name: String,
+    pub created_at: String,
+    pub private_git_path: String,
+    pub public_distribution_state: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
+pub enum SourceKind {
+    UserMessage,
+    PersonaResponse,
+    SystemContext,
+    ProtocolEvent,
+    AgentAction,
+    ToolResult,
+    SystemReceipt,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct TimelineEvent {
+    pub event_id: String,
+    pub source_kind: SourceKind,
+    pub title: String,
+    pub content: String,
+    pub occurred_at: String,
+    pub state: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct KnowledgeSummary {
+    pub path: String,
+    pub title: String,
+    pub updated_at: String,
+    pub sha256: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct KnowledgeDocument {
+    pub path: String,
+    pub title: String,
+    pub body: String,
+    pub updated_at: String,
+    pub sha256: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ExternalAiBridge {
+    pub bridge_id: String,
+    pub display_name: String,
+    pub inbox_path: String,
+    pub outbox_path: String,
+    pub state: String,
+}
+
+#[derive(Clone, Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SystemSnapshot {
+    pub app_version: String,
+    pub channel: Option<Channel>,
+    pub timeline: Vec<TimelineEvent>,
+    pub documents: Vec<KnowledgeSummary>,
+    pub module_registry_version: String,
+    pub public_update_endpoint: String,
+    pub public_distribution_state: String,
+    pub external_ai_bridges: Vec<ExternalAiBridge>,
+}
+
+#[derive(Clone, Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct MutationReceipt {
+    pub receipt_id: String,
+    pub state: String,
+    pub message: String,
+    pub git_commit: Option<String>,
+    pub event: TimelineEvent,
+}