[Refactor] Decouple Chatbot Rules to JSON Configuration

**Description:** The chatbot_rules dictionary is currently hardcoded inside bot.py. This makes the code difficult to maintain and mixes data with logic. If we want to add new intents or responses, we have to modify the main application logic.

**Goal:** Move the configuration data out of the Python file and into a dedicated data file.

Tasks:

- Create a new file named intents.json.
- Move the chatbot_rules dictionary structure into the JSON file.
- Update bot.py to import the json library.
- Modify bot.py to load rules from intents.json at startup.

Please assign it to me!

~@aaditya8979