feat: allow custom install and start commands (#892)

# Description

Gives the ability to define an `install` and `startup` command when
importing a project, so we can work on a project locally without any
issue.

# Preview

<img width="2256" height="1422" alt="image"
src="https://github.com/user-attachments/assets/2132b1cb-5f71-4b88-84db-8ecc81cf1f66"
/>

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Co-authored-by: Will Chen <willchen90@gmail.com>

src/db/schema.ts

@@ -23,6 +23,8 @@ export const apps = sqliteTable("apps", {
   vercelProjectName: text("vercel_project_name"),
   vercelTeamId: text("vercel_team_id"),
   vercelDeploymentUrl: text("vercel_deployment_url"),
+  installCommand: text("install_command"),
+  startCommand: text("start_command"),
   chatContext: text("chat_context", { mode: "json" }),
 });