[SuperAI] Implement concatenation code for pantip data

[Chawak]

• Implement code to concat title, top comment, and comment together.
• Research about separate tokens to separate different types of text.

[new5558]

Descripton: Create Pipeline for injecting JSONL Pantip Data and convert to our own JSONL Format

{Title}

{Description}

<sep_token> 

{Comment 1}

<sep_token> 

{Comment 2}

<sep_token> 

{Comment 3}

...

or

{Title}

{Description}

comment 1: {Comment 1}

comment 2: {Comment 2}

comment 3: {Comment 3}

...

...

Deliverables:

• Code
• PR