feat(backend): modèle unifié streaming/progress/events provider-agnostic + pont app-tauri — foundation #156 (QA verte)

crates/app-tauri/src/chat.rs

@@ -30,7 +30,9 @@ use backend::stream::ReplayOutputBridge;
 use tauri::ipc::Channel;
 
 use domain::ids::SessionId;
-use domain::ports::ReplyEvent;
+use domain::ports::{
+    ReplyEvent, ReplyProgress, ReplyProgressKind, ReplyProgressSource, ReplyProgressStage,
+};
 
 use crate::dto::ReplyChunk;
 use crate::stream::TauriChannelSink;
@@ -136,6 +138,13 @@ fn reply_chunk_bytes(chunk: &ReplyChunk) -> usize {
         ReplyChunk::UserPrompt { text } => text.len(),
         ReplyChunk::TextDelta { text } => text.len(),
         ReplyChunk::ToolActivity { label } => label.len(),
+        ReplyChunk::Progress { progress } => {
+            progress.label.len()
+                + progress.text.as_ref().map_or(0, String::len)
+                + progress.provider.as_ref().map_or(0, String::len)
+                + progress.native_event.as_ref().map_or(0, String::len)
+                + progress.tool_name.as_ref().map_or(0, String::len)
+        }
         ReplyChunk::Final { content } => content.len(),
         ReplyChunk::Error { message } => message.len(),
     }
@@ -154,8 +163,20 @@ fn reply_chunk_bytes(chunk: &ReplyChunk) -> usize {
 #[must_use]
 pub fn chunk_from_event(event: ReplyEvent) -> Option<ReplyChunk> {
     match event {
+        ReplyEvent::Progress { progress } => Some(ReplyChunk::Progress {
+            progress: progress.into(),
+        }),
         ReplyEvent::TextDelta { text } => Some(ReplyChunk::TextDelta { text }),
-        ReplyEvent::ToolActivity { label } => Some(ReplyChunk::ToolActivity { label }),
+        ReplyEvent::ToolActivity { label } => Some(ReplyChunk::Progress {
+            progress: ReplyProgress::new(
+                ReplyProgressSource::ProviderNative,
+                ReplyProgressKind::Tool,
+                ReplyProgressStage::Info,
+                label.clone(),
+            )
+            .with_tool_name(label)
+            .into(),
+        }),
         ReplyEvent::Error { message } => Some(ReplyChunk::Error { message }),
         ReplyEvent::Final { content } => {
             if content.trim().is_empty() {
@@ -166,7 +187,16 @@ pub fn chunk_from_event(event: ReplyEvent) -> Option<ReplyChunk> {
                 Some(ReplyChunk::Final { content })
             }
         }
-        ReplyEvent::Announcement { .. } => None,
+        ReplyEvent::Announcement { text } => Some(ReplyChunk::Progress {
+            progress: ReplyProgress::new(
+                ReplyProgressSource::ProviderNative,
+                ReplyProgressKind::Message,
+                ReplyProgressStage::Delta,
+                "message intermédiaire",
+            )
+            .with_text(text)
+            .into(),
+        }),
         ReplyEvent::Heartbeat => None,
         ReplyEvent::RateLimited { .. } => None,
     }