go through upload, create kb, add doc to kb (#11)

* add field progress msg into docinfo; add file processing procedure

* go through upload, create kb, add doc to kb

src/entity/doc_info.rs

@@ -10,10 +10,11 @@ pub struct Model {
     #[sea_orm(index)]
     pub uid: i64,
     pub doc_name: String,
-    pub size: u64,
+    pub size: i64,
     #[sea_orm(column_name = "type")]
     pub r#type: String,
-    pub kb_progress: f64,
+    pub kb_progress: f32,
+    pub kb_progress_msg: String,
     pub location: String,
     #[sea_orm(ignore)]
     pub kb_infos: Vec<kb_info::Model>,
@@ -57,4 +58,4 @@ impl Related<Entity> for Entity {
     }
 }
 
-impl ActiveModelBehavior for ActiveModel {}
+impl ActiveModelBehavior for ActiveModel {}