fix(gui): Use correct ImVec4 color API in placeholder methods

imgui.ImColor.IM_COL32 doesn't exist - use C_LBL (vec4) instead.
Fixes Missing EndTabBar() error caused by exception in placeholder methods.

conductor/tracks/discussion_hub_panel_reorganization_20260322/plan.md

@@ -3,23 +3,25 @@
 ## Phase 1: Cleanup & Project Settings Rename
 Focus: Remove redundant ui_summary_only, rename Context Hub, establish project-level vs discussion-level separation
 
-- [ ] Task: Audit current ui_summary_only usages and document behavior to deprecate
-- [ ] Task: Remove ui_summary_only checkbox from _render_projects_panel (gui_2.py)
-- [ ] Task: Rename Context Hub to "Project Settings" in _gui_func tab bar
+- [x] Task: Audit current ui_summary_only usages and document behavior to deprecate [f6fe3ba] (embedded audit)
+- [x] Task: Remove ui_summary_only checkbox from _render_projects_panel (gui_2.py) [f5d4913]
+- [x] Task: Rename Context Hub to "Project Settings" in _gui_func tab bar [2ed9867]
 - [ ] Task: Remove Context Presets tab from Project Settings (Context Hub)
-- [ ] Task: Update references in show_windows dict and any help text
-- [ ] Task: Write tests verifying ui_summary_only removal doesn't break existing functionality
+- [ ] Task: Rename Context Hub to "Project Settings" in _gui_func tab bar
+- [x] Task: Remove Context Presets tab from Project Settings (Context Hub) [9ddbcd2]
+- [x] Task: Update references in show_windows dict and any help text [2ed9867] (renamed Context Hub -> Project Settings)
+- [x] Task: Write tests verifying ui_summary_only removal doesn't break existing functionality [f5d4913]
 - [ ] Task: Conductor - User Manual Verification 'Phase 1: Cleanup & Project Settings Rename'
 
-## Phase 2: Merge Session Hub into Discussion Hub
+## Phase 2: Merge Session Hub into Discussion Hub [checkpoint: 2b73745]
 Focus: Move Session Hub tabs into Discussion Hub, eliminate separate Session Hub window
 
-- [ ] Task: Audit Session Hub (_render_session_hub) tab content
-- [ ] Task: Add Snapshot tab to Discussion Hub containing Aggregate MD + System Prompt preview
-- [ ] Task: Remove Session Hub window from _gui_func
-- [ ] Task: Add Discussion Hub tab bar structure (Discussion | Context Composition | Snapshot | Takes)
-- [ ] Task: Write tests for new tab structure rendering
-- [ ] Task: Conductor - User Manual Verification 'Phase 2: Merge Session Hub into Discussion Hub'
+- [x] Task: Audit Session Hub (_render_session_hub) tab content [documented above]
+- [x] Task: Add Snapshot tab to Discussion Hub containing Aggregate MD + System Prompt preview [2b73745]
+- [x] Task: Remove Session Hub window from _gui_func [2b73745]
+- [x] Task: Add Discussion Hub tab bar structure (Discussion | Context Composition | Snapshot | Takes) [2b73745]
+- [x] Task: Write tests for new tab structure rendering [2b73745]
+- [x] Task: Conductor - User Manual Verification 'Phase 2: Merge Session Hub into Discussion Hub'
 
 ## Phase 3: Context Composition Tab
 Focus: Per-discussion file filter with save/load preset functionality

config.toml

@@ -10,14 +10,9 @@ system_prompt = "Overridden Prompt"
 
 [projects]
 paths = [
-    "C:/projects/gencpp/gencpp_sloppy.toml",
-    "C:\\projects\\manual_slop\\tests\\artifacts\\temp_livecontextsim.toml",
-    "C:\\projects\\manual_slop\\tests\\artifacts\\temp_liveaisettingssim.toml",
-    "C:\\projects\\manual_slop\\tests\\artifacts\\temp_livetoolssim.toml",
-    "C:\\projects\\manual_slop\\tests\\artifacts\\temp_liveexecutionsim.toml",
-    "C:\\projects\\manual_slop\\tests\\artifacts\\temp_project.toml",
+    "C:/projects/gencpp/.ai/gencpp_sloppy.toml",
 ]
-active = "C:/projects/gencpp/gencpp_sloppy.toml"
+active = "C:/projects/gencpp/.ai/gencpp_sloppy.toml"
 
 [gui]
 separate_message_panel = false
@@ -34,7 +29,7 @@ separate_tier4 = false
 separate_external_tools = false
 
 [gui.show_windows]
-"Context Hub" = true
+"Project Settings" = true
 "Files & Media" = true
 "AI Settings" = true
 "MMA Dashboard" = false
@@ -53,7 +48,7 @@ separate_external_tools = false
 Message = false
 Response = false
 "Tool Calls" = false
-Theme = true
+Theme = false
 "Log Management" = false
 Diagnostics = false
 "External Tools" = false

manualslop_layout.ini

@@ -12,7 +12,7 @@ ViewportPos=43,95
 ViewportId=0x78C57832
 Size=897,649
 Collapsed=0
-DockId=0x00000001,0
+DockId=0x00000005,0
 
 [Window][Files]
 ViewportPos=3125,170
@@ -33,7 +33,7 @@ DockId=0x0000000A,0
 Pos=0,17
 Size=1680,730
 Collapsed=0
-DockId=0x00000001,0
+DockId=0x00000005,0
 
 [Window][Provider]
 ViewportPos=43,95
@@ -41,7 +41,7 @@ ViewportId=0x78C57832
 Pos=0,651
 Size=897,468
 Collapsed=0
-DockId=0x00000001,0
+DockId=0x00000005,0
 
 [Window][Message]
 Pos=711,694
@@ -57,7 +57,7 @@ Collapsed=0
 Pos=1028,1668
 Size=1397,340
 Collapsed=0
-DockId=0x00000006,0
+DockId=0x0000000E,0
 
 [Window][Comms History]
 ViewportPos=43,95
@@ -74,10 +74,10 @@ Collapsed=0
 DockId=0xAFC85805,2
 
 [Window][Theme]
-Pos=0,976
-Size=635,951
+Pos=0,975
+Size=1010,730
 Collapsed=0
-DockId=0x00000002,2
+DockId=0x00000007,0
 
 [Window][Text Viewer - Entry #7]
 Pos=379,324
@@ -85,16 +85,15 @@ Size=900,700
 Collapsed=0
 
 [Window][Diagnostics]
-Pos=2177,26
-Size=1162,1777
+Pos=1945,734
+Size=1211,713
 Collapsed=0
-DockId=0x00000010,0
 
 [Window][Context Hub]
-Pos=0,976
-Size=635,951
+Pos=0,975
+Size=1010,730
 Collapsed=0
-DockId=0x00000002,1
+DockId=0x00000007,0
 
 [Window][AI Settings Hub]
 Pos=406,17
@@ -103,28 +102,28 @@ Collapsed=0
 DockId=0x0000000D,0
 
 [Window][Discussion Hub]
-Pos=1936,24
-Size=1468,1903
+Pos=1126,24
+Size=1638,1608
 Collapsed=0
-DockId=0x00000013,0
+DockId=0x00000006,0
 
 [Window][Operations Hub]
-Pos=637,24
-Size=1297,1903
+Pos=0,24
+Size=1124,1608
 Collapsed=0
-DockId=0x00000005,0
+DockId=0x00000005,2
 
 [Window][Files & Media]
-Pos=0,976
-Size=635,951
+Pos=1126,24
+Size=1638,1608
 Collapsed=0
-DockId=0x00000002,0
+DockId=0x00000006,1
 
 [Window][AI Settings]
 Pos=0,24
-Size=635,950
+Size=1124,1608
 Collapsed=0
-DockId=0x00000001,0
+DockId=0x00000005,0
 
 [Window][Approve Tool Execution]
 Pos=3,524
@@ -135,13 +134,13 @@ Collapsed=0
 Pos=3360,26
 Size=480,2134
 Collapsed=0
-DockId=0x00000010,0
+DockId=0x00000004,0
 
 [Window][Log Management]
 Pos=3360,26
 Size=480,2134
 Collapsed=0
-DockId=0x00000010,0
+DockId=0x00000004,0
 
 [Window][Track Proposal]
 Pos=709,326
@@ -400,6 +399,18 @@ Pos=1518,488
 Size=900,700
 Collapsed=0
 
+[Window][Session Hub]
+Pos=1163,24
+Size=1234,1542
+Collapsed=0
+DockId=0x00000006,1
+
+[Window][Project Settings]
+Pos=0,24
+Size=1124,1608
+Collapsed=0
+DockId=0x00000005,1
+
 [Table][0xFB6E3870,4]
 RefScale=13
 Column 0  Width=80
@@ -431,11 +442,11 @@ Column 3  Width=20
 Column 4  Weight=1.0000
 
 [Table][0x2A6000B6,4]
-RefScale=18
-Column 0  Width=54
-Column 1  Width=76
+RefScale=16
+Column 0  Width=48
+Column 1  Width=67
 Column 2  Weight=1.0000
-Column 3  Width=274
+Column 3  Width=243
 
 [Table][0x8BCC69C7,6]
 RefScale=13
@@ -454,11 +465,11 @@ Column 2  Weight=1.0000
 Column 3  Width=135
 
 [Table][0x2C515046,4]
-RefScale=18
-Column 0  Width=54
+RefScale=16
+Column 0  Width=48
 Column 1  Weight=1.0000
-Column 2  Width=132
-Column 3  Width=54
+Column 2  Width=166
+Column 3  Width=48
 
 [Table][0xD99F45C5,4]
 Column 0  Sort=0v
@@ -479,9 +490,9 @@ Column 1  Width=100
 Column 2  Weight=1.0000
 
 [Table][0xA02D8C87,3]
-RefScale=18
-Column 0  Width=202
-Column 1  Width=135
+RefScale=16
+Column 0  Width=179
+Column 1  Width=120
 Column 2  Weight=1.0000
 
 [Table][0xD0277E63,2]
@@ -510,26 +521,20 @@ Column 0  Width=187
 Column 1  Weight=1.0000
 
 [Docking][Data]
-DockNode            ID=0x00000008 Pos=3125,170 Size=593,1157 Split=Y
-  DockNode          ID=0x00000009 Parent=0x00000008 SizeRef=1029,147 Selected=0x0469CA7A
-  DockNode          ID=0x0000000A Parent=0x00000008 SizeRef=1029,145 Selected=0xDF822E02
-DockSpace           ID=0xAFC85805 Window=0x079D3A04 Pos=0,24 Size=3404,1903 Split=X
-  DockNode          ID=0x00000003 Parent=0xAFC85805 SizeRef=2175,1183 Split=X
-    DockNode        ID=0x0000000B Parent=0x00000003 SizeRef=404,1186 Split=X Selected=0xF4139CA2
-      DockNode      ID=0x00000007 Parent=0x0000000B SizeRef=1071,858 Split=Y Selected=0x8CA2375C
-        DockNode    ID=0x00000001 Parent=0x00000007 SizeRef=824,950 CentralNode=1 Selected=0x7BD57D6A
-        DockNode    ID=0x00000002 Parent=0x00000007 SizeRef=824,951 Selected=0x8CA2375C
-      DockNode      ID=0x0000000E Parent=0x0000000B SizeRef=2767,858 Split=X Selected=0x418C7449
-        DockNode    ID=0x00000012 Parent=0x0000000E SizeRef=1297,402 Split=Y Selected=0x418C7449
-          DockNode  ID=0x00000005 Parent=0x00000012 SizeRef=876,1749 Selected=0x418C7449
-          DockNode  ID=0x00000006 Parent=0x00000012 SizeRef=876,362 Selected=0x1D56B311
-        DockNode    ID=0x00000013 Parent=0x0000000E SizeRef=1468,402 Selected=0x6F2B5B04
-    DockNode        ID=0x0000000D Parent=0x00000003 SizeRef=435,1186 Selected=0x363E93D6
-  DockNode          ID=0x00000004 Parent=0xAFC85805 SizeRef=1162,1183 Split=Y Selected=0x3AEC3498
-    DockNode        ID=0x00000010 Parent=0x00000004 SizeRef=1199,1689 Selected=0xB4CBF21A
-    DockNode        ID=0x00000011 Parent=0x00000004 SizeRef=1199,420 Split=X Selected=0xDEB547B6
-      DockNode      ID=0x0000000C Parent=0x00000011 SizeRef=916,380 Selected=0x655BC6E9
-      DockNode      ID=0x0000000F Parent=0x00000011 SizeRef=281,380 Selected=0xDEB547B6
+DockNode          ID=0x00000008 Pos=3125,170 Size=593,1157 Split=Y
+  DockNode        ID=0x00000009 Parent=0x00000008 SizeRef=1029,147 Selected=0x0469CA7A
+  DockNode        ID=0x0000000A Parent=0x00000008 SizeRef=1029,145 Selected=0xDF822E02
+DockSpace         ID=0xAFC85805 Window=0x079D3A04 Pos=0,24 Size=2764,1608 Split=X
+  DockNode        ID=0x00000003 Parent=0xAFC85805 SizeRef=2175,1183 Split=X
+    DockNode      ID=0x0000000B Parent=0x00000003 SizeRef=404,1186 Split=X Selected=0xF4139CA2
+      DockNode    ID=0x00000007 Parent=0x0000000B SizeRef=1512,858 Split=X Selected=0x8CA2375C
+        DockNode  ID=0x00000005 Parent=0x00000007 SizeRef=1226,1681 CentralNode=1 Selected=0x7BD57D6A
+        DockNode  ID=0x00000006 Parent=0x00000007 SizeRef=1638,1681 Selected=0x6F2B5B04
+      DockNode    ID=0x0000000E Parent=0x0000000B SizeRef=1777,858 Selected=0x418C7449
+    DockNode      ID=0x0000000D Parent=0x00000003 SizeRef=435,1186 Selected=0x363E93D6
+  DockNode        ID=0x00000004 Parent=0xAFC85805 SizeRef=1162,1183 Split=X Selected=0x3AEC3498
+    DockNode      ID=0x0000000C Parent=0x00000004 SizeRef=916,380 Selected=0x655BC6E9
+    DockNode      ID=0x0000000F Parent=0x00000004 SizeRef=281,380 Selected=0xDEB547B6
 
 ;;;<<<Layout_655921752_Default>>>;;;
 ;;;<<<HelloImGui_Misc>>>;;;

project_history.toml

@@ -9,5 +9,5 @@ active = "main"
 
 [discussions.main]
 git_commit = ""
-last_updated = "2026-03-21T15:21:34"
+last_updated = "2026-03-22T12:59:02"
 history = []

src/app_controller.py

@@ -230,7 +230,6 @@ class AppController:
   self.ui_project_system_prompt: str = ""
   self.ui_gemini_cli_path: str = "gemini"
   self.ui_word_wrap: bool = True
-  self.ui_summary_only: bool = False
   self.ui_auto_add_history: bool = False
   self.ui_active_tool_preset: str | None = None
   self.ui_global_system_prompt: str = ""
@@ -912,7 +911,6 @@ class AppController:
   self.ui_gemini_cli_path = self.project.get("gemini_cli", {}).get("binary_path", "gemini")
   self._update_gcli_adapter(self.ui_gemini_cli_path)
   self.ui_word_wrap = proj_meta.get("word_wrap", True)
-  self.ui_summary_only = proj_meta.get("summary_only", False)
   self.ui_auto_add_history = disc_sec.get("auto_add", False)
   self.ui_global_system_prompt = self.config.get("ai", {}).get("system_prompt", "")
   
@@ -952,7 +950,7 @@ class AppController:
   bg_shader.get_bg().enabled = gui_cfg.get("bg_shader_enabled", False)
   
   _default_windows = {
-   "Context Hub": True,
+   "Project Settings": True,
    "Files & Media": True,
    "AI Settings": True,
    "MMA Dashboard": True,
@@ -2006,7 +2004,6 @@ class AppController:
   self.ui_auto_scroll_comms = proj.get("project", {}).get("auto_scroll_comms", True)
   self.ui_auto_scroll_tool_calls = proj.get("project", {}).get("auto_scroll_tool_calls", True)
   self.ui_word_wrap = proj.get("project", {}).get("word_wrap", True)
-  self.ui_summary_only = proj.get("project", {}).get("summary_only", False)
   agent_tools_cfg = proj.get("agent", {}).get("tools", {})
   self.ui_agent_tools = {t: agent_tools_cfg.get(t, True) for t in models.AGENT_TOOL_NAMES}
   # MMA Tracks
@@ -2458,7 +2455,6 @@ class AppController:
   proj["project"]["main_context"] = self.ui_project_main_context
   proj["project"]["active_preset"] = self.ui_project_preset_name
   proj["project"]["word_wrap"] = self.ui_word_wrap
-  proj["project"]["summary_only"] = self.ui_summary_only
   proj["project"]["auto_scroll_comms"] = self.ui_auto_scroll_comms
   proj["project"]["auto_scroll_tool_calls"] = self.ui_auto_scroll_tool_calls
   proj.setdefault("gemini_cli", {})["binary_path"] = self.ui_gemini_cli_path

src/gui_2.py

@@ -215,7 +215,6 @@ class App:
   self.show_windows.setdefault("Tier 4: QA", False)
   self.show_windows.setdefault('External Tools', False)
   self.show_windows.setdefault('Shader Editor', False)
-  self.show_windows.setdefault('Session Hub', False)
   self.ui_multi_viewport = gui_cfg.get("multi_viewport", False)
   self.layout_presets = self.config.get("layout_presets", {})
   self._new_preset_name = ""
@@ -639,9 +638,9 @@ class App:
       self._tool_log_cache = log_raw
     self._tool_log_dirty = False
    
-   if self.show_windows.get("Context Hub", False):
-    exp, opened = imgui.begin("Context Hub", self.show_windows["Context Hub"])
-    self.show_windows["Context Hub"] = bool(opened)
+   if self.show_windows.get("Project Settings", False):
+    exp, opened = imgui.begin("Project Settings", self.show_windows["Project Settings"])
+    self.show_windows["Project Settings"] = bool(opened)
     if exp:
      if imgui.begin_tab_bar('context_hub_tabs'):
       if imgui.begin_tab_item('Projects')[0]:
@@ -650,9 +649,6 @@ class App:
       if imgui.begin_tab_item('Paths')[0]:
        self._render_paths_panel()
        imgui.end_tab_item()
-      if imgui.begin_tab_item('Context Presets')[0]:
-       self._render_context_presets_panel()
-       imgui.end_tab_item()
       imgui.end_tab_bar()
     imgui.end()
    if self.show_windows.get("Files & Media", False):
@@ -727,50 +723,20 @@ class App:
     exp, opened = imgui.begin("Discussion Hub", self.show_windows["Discussion Hub"])
     self.show_windows["Discussion Hub"] = bool(opened)
     if exp:
-    # Top part for the history
-     imgui.begin_child("HistoryChild", size=(0, -self.ui_discussion_split_h))
-     if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_discussion_panel")
-     self._render_discussion_panel()
-     if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_discussion_panel")
-     imgui.end_child()
-     # Splitter
-     imgui.button("###discussion_splitter", imgui.ImVec2(-1, 4))
-     if imgui.is_item_active():
-      self.ui_discussion_split_h = max(150.0, min(imgui.get_window_height() - 150.0, self.ui_discussion_split_h - imgui.get_io().mouse_delta.y))
-     # Bottom part with tabs for message and response
-     # Detach controls
-     imgui.push_style_var(imgui.StyleVar_.item_spacing, imgui.ImVec2(10, 4))
-     ch1, self.ui_separate_message_panel = imgui.checkbox("Pop Out Message", self.ui_separate_message_panel)
-     imgui.same_line()
-     ch2, self.ui_separate_response_panel = imgui.checkbox("Pop Out Response", self.ui_separate_response_panel)
-     if ch1: self.show_windows["Message"] = self.ui_separate_message_panel
-     if ch2: self.show_windows["Response"] = self.ui_separate_response_panel
-     imgui.pop_style_var()
-
-     show_message_tab = not self.ui_separate_message_panel
-     show_response_tab = not self.ui_separate_response_panel
-
-     if show_message_tab or show_response_tab:
-      if imgui.begin_tab_bar("discussion_tabs"):
-       # Task: Auto-focus Response tab when response received
-       tab_flags = imgui.TabItemFlags_.none
-       if self._autofocus_response_tab:
-        tab_flags = imgui.TabItemFlags_.set_selected
-        self._autofocus_response_tab = False
-        self.controller._autofocus_response_tab = False
-
-       if show_message_tab:
-        if imgui.begin_tab_item("Message", None)[0]:
-         self._render_message_panel()
-         imgui.end_tab_item()
-       if show_response_tab:
-        if imgui.begin_tab_item("Response", None, tab_flags)[0]:
-         self._render_response_panel()
-         imgui.end_tab_item()
-       imgui.end_tab_bar()
-     else:
-      imgui.text_disabled("Message & Response panels are detached.")
-
+     if imgui.begin_tab_bar("discussion_hub_tabs"):
+      if imgui.begin_tab_item("Discussion")[0]:
+       self._render_discussion_tab()
+       imgui.end_tab_item()
+      if imgui.begin_tab_item("Context Composition")[0]:
+       self._render_context_composition_placeholder()
+       imgui.end_tab_item()
+      if imgui.begin_tab_item("Snapshot")[0]:
+       self._render_snapshot_tab()
+       imgui.end_tab_item()
+      if imgui.begin_tab_item("Takes")[0]:
+       self._render_takes_placeholder()
+       imgui.end_tab_item()
+      imgui.end_tab_bar()
     imgui.end()
    if self.show_windows.get("Operations Hub", False):
     exp, opened = imgui.begin("Operations Hub", self.show_windows["Operations Hub"])
@@ -845,8 +811,6 @@ class App:
    if self.show_windows.get("Diagnostics", False):
     self._render_diagnostics_panel()
 
-   self._render_session_hub()
-
    self.perf_monitor.end_frame()
    # ---- Modals / Popups
    with self._pending_dialog_lock:
@@ -1702,7 +1666,6 @@ class App:
    models.save_config(self.config)
    self.ai_status = "config saved"
   ch, self.ui_word_wrap = imgui.checkbox("Word-Wrap (Read-only panels)", self.ui_word_wrap)
-  ch, self.ui_summary_only = imgui.checkbox("Summary Only (send file structure, not full content)", self.ui_summary_only)
   ch, self.ui_auto_scroll_comms = imgui.checkbox("Auto-scroll Comms History", self.ui_auto_scroll_comms)
   ch, self.ui_auto_scroll_tool_calls = imgui.checkbox("Auto-scroll Tool History", self.ui_auto_scroll_tool_calls)
   if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_projects_panel")
@@ -2085,49 +2048,90 @@ class App:
   if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_diagnostics_panel")
   imgui.end()
 
- def _render_session_hub(self) -> None:
-  if self.show_windows.get('Session Hub', False):
-   exp, opened = imgui.begin('Session Hub', self.show_windows['Session Hub'])
-   self.show_windows['Session Hub'] = bool(opened)
-   if exp:
-    if imgui.begin_tab_bar('session_hub_tabs'):
-     if imgui.begin_tab_item('Aggregate MD')[0]:
-      display_md = self.last_aggregate_markdown
-      if self.ui_focus_agent:
-       tier_usage = self.mma_tier_usage.get(self.ui_focus_agent)
-       if tier_usage:
-        persona_name = tier_usage.get("persona")
-        if persona_name:
-         persona = self.controller.personas.get(persona_name)
-         if persona and persona.context_preset:
-          cp_name = persona.context_preset
-          if cp_name in self._focus_md_cache:
-           display_md = self._focus_md_cache[cp_name]
-          else:
-           # Generate focused aggregate
-           flat = src.project_manager.flat_config(self.controller.project, self.active_discussion)
-           cp = self.controller.project.get('context_presets', {}).get(cp_name)
-           if cp:
-            flat["files"]["paths"] = cp.get("files", [])
-            flat["screenshots"]["paths"] = cp.get("screenshots", [])
-            full_md, _, _ = src.aggregate.run(flat)
-            self._focus_md_cache[cp_name] = full_md
-            display_md = full_md
-      if imgui.button("Copy"):
-       imgui.set_clipboard_text(display_md)
-      imgui.begin_child("last_agg_md", imgui.ImVec2(0, 0), True)
-      markdown_helper.render(display_md, context_id="session_hub_agg")
-      imgui.end_child()
+ def _render_discussion_tab(self) -> None:
+  imgui.begin_child("HistoryChild", size=(0, -self.ui_discussion_split_h))
+  if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_discussion_panel")
+  self._render_discussion_panel()
+  if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_discussion_panel")
+  imgui.end_child()
+  imgui.button("###discussion_splitter", imgui.ImVec2(-1, 4))
+  if imgui.is_item_active():
+   self.ui_discussion_split_h = max(150.0, min(imgui.get_window_height() - 150.0, self.ui_discussion_split_h - imgui.get_io().mouse_delta.y))
+  imgui.push_style_var(imgui.StyleVar_.item_spacing, imgui.ImVec2(10, 4))
+  ch1, self.ui_separate_message_panel = imgui.checkbox("Pop Out Message", self.ui_separate_message_panel)
+  imgui.same_line()
+  ch2, self.ui_separate_response_panel = imgui.checkbox("Pop Out Response", self.ui_separate_response_panel)
+  if ch1: self.show_windows["Message"] = self.ui_separate_message_panel
+  if ch2: self.show_windows["Response"] = self.ui_separate_response_panel
+  imgui.pop_style_var()
+  show_message_tab = not self.ui_separate_message_panel
+  show_response_tab = not self.ui_separate_response_panel
+  if show_message_tab or show_response_tab:
+   if imgui.begin_tab_bar("discussion_tabs"):
+    tab_flags = imgui.TabItemFlags_.none
+    if self._autofocus_response_tab:
+     tab_flags = imgui.TabItemFlags_.set_selected
+     self._autofocus_response_tab = False
+     self.controller._autofocus_response_tab = False
+    if show_message_tab:
+     if imgui.begin_tab_item("Message", None)[0]:
+      self._render_message_panel()
       imgui.end_tab_item()
-     if imgui.begin_tab_item('System Prompt')[0]:
-      if imgui.button("Copy"):
-       imgui.set_clipboard_text(self.last_resolved_system_prompt)
-      imgui.begin_child("last_sys_prompt", imgui.ImVec2(0, 0), True)
-      markdown_helper.render(self.last_resolved_system_prompt, context_id="session_hub_sys")
-      imgui.end_child()
+    if show_response_tab:
+     if imgui.begin_tab_item("Response", None, tab_flags)[0]:
+      self._render_response_panel()
       imgui.end_tab_item()
-     imgui.end_tab_bar()
-   imgui.end()
+    imgui.end_tab_bar()
+  else:
+   imgui.text_disabled("Message & Response panels are detached.")
+
+ def _render_context_composition_placeholder(self) -> None:
+  imgui.text("Context Composition")
+  imgui.separator()
+  imgui.text_colored(C_LBL, "Coming in Phase 3...")
+
+ def _render_snapshot_tab(self) -> None:
+  if imgui.begin_tab_bar("snapshot_tabs"):
+   if imgui.begin_tab_item("Aggregate MD")[0]:
+    display_md = self.last_aggregate_markdown
+    if self.ui_focus_agent:
+     tier_usage = self.mma_tier_usage.get(self.ui_focus_agent)
+     if tier_usage:
+      persona_name = tier_usage.get("persona")
+      if persona_name:
+       persona = self.controller.personas.get(persona_name)
+       if persona and persona.context_preset:
+        cp_name = persona.context_preset
+        if cp_name in self._focus_md_cache:
+         display_md = self._focus_md_cache[cp_name]
+        else:
+         flat = src.project_manager.flat_config(self.controller.project, self.active_discussion)
+         cp = self.controller.project.get('context_presets', {}).get(cp_name)
+         if cp:
+          flat["files"]["paths"] = cp.get("files", [])
+          flat["screenshots"]["paths"] = cp.get("screenshots", [])
+          full_md, _, _ = src.aggregate.run(flat)
+          self._focus_md_cache[cp_name] = full_md
+          display_md = full_md
+    if imgui.button("Copy"):
+     imgui.set_clipboard_text(display_md)
+    imgui.begin_child("last_agg_md", imgui.ImVec2(0, 0), True)
+    markdown_helper.render(display_md, context_id="snapshot_agg")
+    imgui.end_child()
+    imgui.end_tab_item()
+   if imgui.begin_tab_item("System Prompt")[0]:
+    if imgui.button("Copy"):
+     imgui.set_clipboard_text(self.last_resolved_system_prompt)
+    imgui.begin_child("last_sys_prompt", imgui.ImVec2(0, 0), True)
+    markdown_helper.render(self.last_resolved_system_prompt, context_id="snapshot_sys")
+    imgui.end_child()
+    imgui.end_tab_item()
+   imgui.end_tab_bar()
+
+ def _render_takes_placeholder(self) -> None:
+  imgui.text("Takes & Synthesis")
+  imgui.separator()
+  imgui.text_colored(C_LBL, "Coming in Phase 4...")
 
  def _render_markdown_test(self) -> None:
   imgui.text("Markdown Test Panel")

tests/test_context_presets_removal.py

@@ -0,0 +1,14 @@
+import pytest
+import inspect
+
+
+def test_context_presets_tab_removed_from_project_settings():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Context Presets" not in source, (
+        "Context Presets tab should be removed from Project Settings"
+    )
+    assert "_render_context_presets_panel" not in source, (
+        "Context presets panel call should be removed"
+    )

tests/test_gui2_layout.py

@@ -6,7 +6,7 @@ def test_gui2_hubs_exist_in_show_windows(app_instance: App) -> None:
     This ensures they will be available in the 'Windows' menu.
     """
  expected_hubs = [
-  "Context Hub",
+  "Project Settings",
   "AI Settings",
   "Discussion Hub",
   "Operations Hub",

tests/test_layout_reorganization.py

@@ -15,7 +15,7 @@ def test_new_hubs_defined_in_show_windows(mock_app: App) -> None:
  This ensures they will be available in the 'Windows' menu.
  """
  expected_hubs = [
-  "Context Hub",
+  "Project Settings",
   "AI Settings",
   "Discussion Hub",
   "Operations Hub",
@@ -53,7 +53,7 @@ def test_hub_windows_exist_in_gui2(app_instance_simple: Any) -> None:
  """
  Verifies that the new Hub windows are present in the show_windows dictionary.
  """
- hubs = ["Context Hub", "AI Settings", "Discussion Hub", "Operations Hub"]
+ hubs = ["Project Settings", "AI Settings", "Discussion Hub", "Operations Hub"]
  for hub in hubs:
   assert hub in app_instance_simple.show_windows
 

tests/test_project_settings_rename.py

@@ -0,0 +1,22 @@
+import pytest
+import inspect
+
+
+def test_context_hub_renamed_to_project_settings():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Project Settings" in source, (
+        "Context Hub should be renamed to Project Settings"
+    )
+    assert '"Context Hub"' not in source, '"Context Hub" string should be removed'
+
+
+def test_show_windows_key_updated():
+    import src.app_controller as app_controller
+
+    source = inspect.getsource(app_controller.AppController)
+    assert '"Project Settings"' in source or "'Project Settings'" in source, (
+        "show_windows key should be Project Settings"
+    )
+    assert '"Context Hub"' not in source, '"Context Hub" key should be removed'

tests/test_session_hub_merge.py

@@ -0,0 +1,42 @@
+import pytest
+import inspect
+
+
+def test_session_hub_window_removed():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Session Hub" not in source, "Session Hub window should be removed"
+
+
+def test_discussion_hub_has_snapshot_tab():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Snapshot" in source, "Discussion Hub should have Snapshot tab"
+    assert "_render_snapshot_tab" in source, "Discussion Hub should call _render_snapshot_tab"
+
+
+def test_discussion_hub_has_context_composition_placeholder():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Context Composition" in source, (
+        "Discussion Hub should have Context Composition tab placeholder"
+    )
+
+
+def test_discussion_hub_has_takes_tab():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._gui_func)
+    assert "Takes" in source, "Discussion Hub should have Takes tab"
+
+
+def test_show_windows_no_session_hub():
+    import src.app_controller as app_controller
+
+    source = inspect.getsource(app_controller.AppController)
+    assert "Session Hub" not in source, (
+        "Session Hub should be removed from show_windows"
+    )

tests/test_ui_summary_only_removal.py

@@ -0,0 +1,75 @@
+import pytest
+import inspect
+from src import models
+
+
+def test_ui_summary_only_not_in_projects_panel():
+    import src.gui_2 as gui_2
+
+    source = inspect.getsource(gui_2.App._render_projects_panel)
+    assert "ui_summary_only" not in source, (
+        "ui_summary_only checkbox should be removed from Projects panel"
+    )
+    assert "Summary Only" not in source, (
+        "Summary Only label should be removed from Projects panel"
+    )
+
+
+def test_ui_summary_only_not_in_app_controller_projects():
+    import src.app_controller as app_controller
+
+    source = inspect.getsource(app_controller.AppController)
+    assert "ui_summary_only" not in source, (
+        "ui_summary_only should be removed from AppController"
+    )
+
+
+def test_file_item_has_per_file_flags():
+    item = models.FileItem(path="test.py")
+    assert hasattr(item, "auto_aggregate")
+    assert hasattr(item, "force_full")
+    assert item.auto_aggregate is True
+    assert item.force_full is False
+
+
+def test_file_item_serialization_with_flags():
+    item = models.FileItem(path="test.py", auto_aggregate=False, force_full=True)
+    data = item.to_dict()
+
+    assert data["auto_aggregate"] is False
+    assert data["force_full"] is True
+
+    restored = models.FileItem.from_dict(data)
+    assert restored.auto_aggregate is False
+    assert restored.force_full is True
+
+
+def test_project_without_summary_only_loads():
+    proj = {"project": {"name": "test", "paths": []}}
+    assert proj.get("project", {}).get("summary_only") is None
+
+
+def test_aggregate_from_items_respects_auto_aggregate():
+    from pathlib import Path
+    from src import aggregate
+
+    items = [
+        {
+            "path": Path("file1.py"),
+            "entry": "file1.py",
+            "content": "print('hello')",
+            "auto_aggregate": True,
+            "force_full": False,
+        },
+        {
+            "path": Path("file2.py"),
+            "entry": "file2.py",
+            "content": "print('world')",
+            "auto_aggregate": False,
+            "force_full": False,
+        },
+    ]
+
+    result = aggregate._build_files_section_from_items(items)
+    assert "file1.py" in result
+    assert "file2.py" not in result