feat: Thread optional `phase` param into `db/sessions.ts::cre… (+7 more)

- ✅ Thread optional `phase` param into `db/sessions.ts::createSession()`
- ✅ Thread optional `phase` param into `ipc/handlers.ts` sessions:create handler
- ✅ Thread optional `phase` param into `preload.ts` createSession API
- ✅ Update Plan phase system prompt to gracefully handle missing research.md
- ✅ Update Implement phase system prompt to gracefully handle missing plan.md
- ✅ Create `renderer/src/components/NewSessionModal.tsx`
- ✅ Update `App.tsx`: add modal state, split handler, add modal JSX
- ✅ Add modal CSS to `globals.css`

1 files changed, 3 insertions, 3 deletions

diff --git a/src/main/preload.ts b/src/main/preload.ts
index e7ee0aa..fbdf871 100644
--- a/src/main/preload.ts
+++ b/src/main/preload.ts
@@ -12,7 +12,7 @@ export interface ClaudeFlowAPI {
 
   // Sessions
   listSessions: (projectId: string) => Promise<Session[]>;
-  createSession: (projectId: string, name: string) => Promise<Session>;
+  createSession: (projectId: string, name: string, phase?: Phase) => Promise<Session>;
   deleteSession: (id: string) => Promise<void>;
   getSession: (id: string) => Promise<Session | undefined>;
   renameSession: (id: string, name: string) => Promise<void>;
@@ -86,8 +86,8 @@ const api: ClaudeFlowAPI = {
 
   // Sessions
   listSessions: (projectId) => ipcRenderer.invoke("sessions:list", projectId),
-  createSession: (projectId, name) =>
-    ipcRenderer.invoke("sessions:create", projectId, name),
+  createSession: (projectId, name, phase) =>
+    ipcRenderer.invoke("sessions:create", projectId, name, phase),
   deleteSession: (id) => ipcRenderer.invoke("sessions:delete", id),
   getSession: (id) => ipcRenderer.invoke("sessions:get", id),
   renameSession: (id, name) => ipcRenderer.invoke("sessions:rename", id, name),