feat: added a new sections feature and recommendations and aseessments and report metadata for the ai intelligence page

Tracked thoughts_tokens for gemini model and added it to the BatchSummary table.

refactor: Added input_tokens, output_tokens and total_tokens column in the BatchSummary table to track usage the tokens efficiently for each LLM.

fix: change __table_args__ to a tuple

refactor: changed model from gemini-3-flash to gemini-2.5-flash and changed the dytpe of batch_summary table's id column from float to integer

Fixed the data type error. Modified the data type of foreign key job_id from float to integer.

Fixed the nullable syntax

Fixed the foreign key syntax

Added a new LLM batch summary table, LLM service and a route to access the batch prediction and generate insights using AI.