feat(logs): Implement session restoration and historical replay mode

src/gui_2.py

@@ -257,6 +257,8 @@ class App:
 
  def _gui_func(self) -> None:
   if self.perf_profiling_enabled: self.perf_monitor.start_component("_gui_func")
+  if self.is_viewing_prior_session:
+   imgui.push_style_color(imgui.Col_.window_bg, vec4(50, 40, 20))
   try:
    self.perf_monitor.start_frame()
    self._autofocus_response_tab = self.controller._autofocus_response_tab
@@ -832,6 +834,11 @@ class App:
    print(f"ERROR in _gui_func: {e}")
    import traceback
    traceback.print_exc()
+  
+  if self.is_viewing_prior_session:
+   imgui.pop_style_color()
+  
+  if self.perf_profiling_enabled: self.perf_monitor.end_component("_gui_func")
 
  def _render_projects_panel(self) -> None:
   if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_projects_panel")
@@ -1093,6 +1100,9 @@ class App:
     imgui.table_next_column()
     imgui.text(str(metadata.get("message_count", "")))
     imgui.table_next_column()
+    if imgui.button(f"Load##{session_id}"):
+     self.cb_load_prior_log(s_data.get("path"))
+    imgui.same_line()
     if whitelisted:
      if imgui.button(f"Unstar##{session_id}"):
       registry.update_session_metadata(
@@ -1233,32 +1243,43 @@ class App:
    if imgui.button("Exit Prior Session"):
     self.is_viewing_prior_session = False
     self.prior_session_entries.clear()
+    self.prior_disc_entries.clear()
+    self._comms_log_dirty = True
    imgui.separator()
    imgui.begin_child("prior_scroll", imgui.ImVec2(0, 0), False)
    clipper = imgui.ListClipper()
-   clipper.begin(len(self.prior_session_entries))
+   clipper.begin(len(self.prior_disc_entries))
    while clipper.step():
     for idx in range(clipper.display_start, clipper.display_end):
-     entry = self.prior_session_entries[idx]
-     imgui.push_id(f"prior_{idx}")
-     kind = entry.get("kind", entry.get("type", ""))
-     imgui.text_colored(C_LBL, f"#{idx+1}")
+     entry = self.prior_disc_entries[idx]
+     imgui.push_id(f"prior_disc_{idx}")
+     collapsed = entry.get("collapsed", False)
+     if imgui.button("+" if collapsed else "-"):
+      entry["collapsed"] = not collapsed
      imgui.same_line()
-     ts = entry.get("ts", entry.get("timestamp", ""))
+     role = entry.get("role", "??")
+     ts = entry.get("ts", "")
+     imgui.text_colored(C_LBL, f"[{role}]")
      if ts:
-      imgui.text_colored(vec4(160, 160, 160), str(ts))
       imgui.same_line()
-     imgui.text_colored(C_KEY, str(kind))
-     payload = entry.get("payload", entry)
-     text = payload.get("text", payload.get("message", payload.get("content", "")))
-     if text:
-      preview = str(text).replace("\n", " ")[:200]
+      imgui.text_colored(vec4(160, 160, 160), str(ts))
+     
+     content = entry.get("content", "")
+     if collapsed:
+      imgui.same_line()
+      preview = content.replace("\n", " ")[:80]
+      if len(content) > 80: preview += "..."
+      imgui.text_colored(vec4(180, 180, 180), preview)
+     else:
+      imgui.begin_child(f"prior_content_{idx}", imgui.ImVec2(0, 150), True)
       if self.ui_word_wrap:
        imgui.push_text_wrap_pos(imgui.get_content_region_avail().x)
-       imgui.text(preview)
+       imgui.text_unformatted(content)
        imgui.pop_text_wrap_pos()
       else:
-       imgui.text(preview)
+       imgui.text_unformatted(content)
+      imgui.end_child()
+     
      imgui.separator()
      imgui.pop_id()
    imgui.end_child()
@@ -2146,6 +2167,10 @@ class App:
 
  def _render_mma_dashboard(self) -> None:
   if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_mma_dashboard")
+  if self.is_viewing_prior_session:
+   imgui.text_colored(vec4(255, 200, 100), "HISTORICAL VIEW - READ ONLY")
+   if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_mma_dashboard")
+   return
  # Task 5.3: Dense Summary Line
   track_name = self.active_track.description if self.active_track else "None"
   track_stats = {"percentage": 0.0, "completed": 0, "total": 0, "in_progress": 0, "blocked": 0, "todo": 0}
@@ -2578,6 +2603,10 @@ class App:
 
  def _render_tier_stream_panel(self, tier_key: str, stream_key: str | None) -> None:
   if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_tier_stream_panel")
+  if self.is_viewing_prior_session:
+   imgui.text_colored(vec4(255, 200, 100), "HISTORICAL VIEW - READ ONLY")
+   if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_tier_stream_panel")
+   return
   if stream_key is not None:
    content = self.mma_streams.get(stream_key, "")
    imgui.begin_child(f"##stream_content_{tier_key}", imgui.ImVec2(-1, -1))