.agents/skills/btca-cli/SKILL.md               |  20 ++
 .agents/skills/btca-cli/agents/openai.yaml     |   3 +
 apps/desktop/src/codexAppServerManager.test.ts |  23 +-
 apps/desktop/src/codexAppServerManager.ts      | 273 +++--------------------
 apps/desktop/src/main.ts                       |   9 -
 apps/desktop/src/preload.ts                    |   2 -
 apps/desktop/src/providerManager.ts            |  14 --
 apps/renderer/src/components/ChatView.tsx      | 384 ++++++++++++++++++++------------
 apps/renderer/src/components/Sidebar.tsx       |  17 +-
 apps/renderer/src/model-logic.test.ts          |  33 +++
 apps/renderer/src/model-logic.ts               |  39 ++++
 apps/renderer/src/session-logic.ts             | 241 ++++++++++++++++++++
 apps/renderer/src/store.ts                     |  60 ++++-
 packages/contracts/src/ipc.ts                  |   4 -
 packages/contracts/src/provider.test.ts        |  12 +-
 packages/contracts/src/provider.ts             |  19 +-
 16 files changed, 695 insertions(+), 458 deletions(-)