Add cli flagsAdd CLI flags to support non-interactive app creation

[Aditya-vegi]

Description

Adds support for CLI flags (--type and --category) to allow non-interactive app creation, enabling automation and scripting scenarios.

Problem

Currently the CLI is fully interactive:

• No way to automate app creation
• Scripts/CI pipelines can't use it
• Similar to modern CLI tools that support both modes

Solution

Added optional flags:

• --type (or -t): App type (chatbot/integration)
• --category (or -c): App category (chatbot/integration/other)

If flags provided → uses them (non-interactive)
If flags absent → falls back to prompts (interactive)

Changes

• Added 2 new flags to static flags definition
• Moved flag parsing before prompts
• Updated appType prompt to use flag if provided
• Added appCategory prompt with same pattern
• Maintains backward compatibility

Type of Change

• New feature (non-breaking)

Usage Examples

Interactive (existing):

rc-apps create