[Enhancement] Add a Startup Configuration File (~/.zorprc)

[aphexlog]

ZorpSh should load a config file on startup (~/.zorprc) to apply aliases, exports, etc.

Tasks:

• Read ~/.zorprc at launch.
• Execute valid commands inside it.
• Ignore empty lines and comments (# this is a comment).

Acceptance Criteria:

• Running zorpsh loads environment variables from ~/.zorprc.
• Aliases and exports from ~/.zorprc persist across sessions.