implemented offline cache

ds_prompt_newtest.txt

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+Payload
+The previous 60 prompts have been provided as a JSON array for reference.
+
+Guidelines
+Topics should be diverse.
+
+Generate 6 writing prompts in English.
+
+Each prompt should include a few guidelines or questions to inspire writing.
+
+Prompts are meant to inspire one to two pages of writing in a journal as an exercise.
+
+Each prompt should be between 500 and 1000 characters in length.
+
+Prompt History Considerations
+The history helps reduce repetition, but some thematic overlap is acceptable.
+
+Try harder to avoid overlap with prompts at lower indices in the array.
+
+As the user discards prompts, themes will slowly steer, so it's okay to take some inspiration from the history.
+
+Expected Output
+Output must be a JSON array with keys from "newprompt0" to "newprompt5" in the case of 6 prompts.
+
+Respond ONLY with valid JSON. No explanations, no markdown, no backticks.