Add OrbitHub C++ Qt Widgets spec and Codex prompts

LICENSE

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+MIT License
+
+Copyright (c) 2026 Keith Smith
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

docs/OrbitHub_Codex_Build_Prompt_CPP_QtWidgets.md

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+# OrbitHub Codex Build Prompt (Pure C++ / Qt6 Widgets)
+
+You are Codex. You will implement OrbitHub entirely in C++ using Qt6 Widgets.
+
+The previous Python/Shiboken implementation is abandoned.
+
+## Rules
+
+- Use modern CMake
+- Use Qt6 Widgets only
+- Use C++17 or newer
+- Never block the GUI thread
+- Use Git for checkpointing
+- Maintain docs/PROGRESS.md
+
+## Required Git Workflow
+
+Create milestone branches:
+- milestone-0-restart-cpp
+- milestone-1-storage
+
+Make small logical commits.
+
+Tag milestone completions:
+- v0-m0-done
+- v0-m1-done
+
+## Milestone 0 Deliverable
+
+Implement:
+- ProfilesWindow (QMainWindow)
+- SessionWindow (QMainWindow)
+- QTabWidget hosting placeholder QWidget
+- main.cpp wiring
+
+Stop after Milestone 0 is complete and tagged.

docs/OrbitHub_Master_Codex_Block_CPP_QtWidgets.md

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+You are Codex and you will do ALL implementation work for OrbitHub.
+
+1) Read docs/OrbitHub_v0_Spec_CPP_QtWidgets.md
+2) Read docs/OrbitHub_Codex_Build_Prompt_CPP_QtWidgets.md
+
+Follow the Build Prompt strictly.
+Use Git branches, commits, and tags.
+Update docs/PROGRESS.md.
+
+Stop after Milestone 0 and tag v0-m0-done.

docs/OrbitHub_v0_Spec_CPP_QtWidgets.md

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+# OrbitHub v0 Specification (Pure C++ / Qt6 Widgets)
+
+## Overview
+
+OrbitHub is a cross-platform native desktop application for managing and launching remote sessions.
+
+Platforms:
+- Windows 11
+- Linux (Mint/Ubuntu-family)
+- macOS
+
+Implementation:
+- 100% C++
+- Qt 6 Widgets (no Qt Quick)
+- CMake build system
+- MIT License
+
+This replaces the earlier Python-based architecture.
+
+---
+
+## UX Model
+
+OrbitHub uses a two-window model:
+
+1) Profiles Window (single instance)
+- List of saved profiles
+- Search box
+- New / Edit / Delete
+- Double-click connects
+
+2) Session Window(s)
+- QTabWidget
+- One tab per session
+- Close tab destroys session
+- Placeholder view widget displays:
+  "OrbitHub Native Surface"
+
+---
+
+## Milestone 0
+
+- Fresh C++/Qt repo scaffold
+- App builds
+- Profiles window launches
+- Session window opens with placeholder tab
+- Tag: v0-m0-done
+
+---
+
+## Milestone 1
+
+- SQLite integration
+- Profiles CRUD
+- Connect loads profile name into tab
+- Tag: v0-m1-done