fix(gui): Final Phase 7 stabilization and polish

- Resolve ImportError by correctly prefixing 'src' in modular renderers.
- Fix ImGui access violation by ensuring push_id always receives string IDs.
- Restore visible role-based background tints using layered rendering (channels).
- Definitively fix horizontal Markdown table widths by forcing group expansion.
- Centralize color management in theme_2.py and ui_shared.py.
- Standardize Files & Media inventory layout and remove legacy controls.
- Update test mocks to support modular UI and theme-driven styling.

config.toml

@@ -1,6 +1,6 @@
 [ai]
 provider = "minimax"
-model = "MiniMax-M2.7"
+model = "MiniMax-M3"
 temperature = 0.699999988079071
 top_p = 1.0
 max_tokens = 4096
@@ -14,12 +14,13 @@ use_default_base_prompt = true
 paths = [
     "C:/projects/gencpp/.ai/gencpp_sloppy.toml",
     "C:/projects/manual_slop/manual_slop.toml",
+    "C:/projects/Pikuma/ps1-ai/pikuma_ps1.toml",
 ]
-active = "C:/projects/gencpp/.ai/gencpp_sloppy.toml"
+active = "C:/projects/Pikuma/ps1-ai/pikuma_ps1.toml"
 
 [gui]
-separate_message_panel = false
-separate_response_panel = false
+separate_message_panel = true
+separate_response_panel = true
 separate_tool_calls_panel = false
 bg_shader_enabled = false
 crt_filter_enabled = false
@@ -35,7 +36,7 @@ separate_external_tools = false
 "Project Settings" = true
 "Files & Media" = true
 "AI Settings" = true
-"MMA Dashboard" = true
+"MMA Dashboard" = false
 "Task DAG" = false
 "Usage Analytics" = false
 "Tier 1" = false
@@ -48,17 +49,17 @@ separate_external_tools = false
 "Tier 4: QA" = false
 "Discussion Hub" = true
 "Operations Hub" = true
-Message = false
-Response = false
+Message = true
+Response = true
 "Tool Calls" = false
+"Text Viewer" = false
 Theme = true
-"Log Management" = false
+"Log Management" = true
 Diagnostics = false
-"Context Preview" = true
+"Context Preview" = false
 "External Tools" = false
 "Shader Editor" = false
 "Undo/Redo History" = false
-"Text Viewer" = false
 
 [theme]
 palette = "Nord Dark"