Added prompts to determine the starting and ending segments of a D&D session transcript

prompts/bounds.user.md

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+Identify the inclusive segment ID range that covers the actual gameplay session in the transcript below.
+
+Use the first gameplay segment as `start_segment_id`.
+Use the final gameplay segment as `end_segment_id`.
+
+Remember:
+- Include the DM’s opening recap or scene-setting if present.
+- Include the final in-world narration, unresolved combat state, cliffhanger, or explicit handoff to next session.
+- Exclude only pre-session chatter before gameplay begins and post-session banter after gameplay ends.
+- Return only valid JSON using the required schema.
+- Do not skip the opening recap, planning, recovery, shopping, travel preparation, or rules adjudication merely because it is less dramatic than later combat. If it occurs after gameplay has begun and affects the session’s state, it belongs inside the range.
+
+Transcript:
+<<<CURRENT_SESSION_TRANSCRIPT
+{{input "transcript"}}
+CURRENT_SESSION_TRANSCRIPT>>>