Organize D&D extensions by domain

internal/modules/dnd/shared/assets/prompts/common-dnd-references.md

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+Optional reference material for this Dungeons & Dragons campaign is provided
+below. Use it only to disambiguate names, aliases, speakers, campaign terms, or
+spell names already present in the transcript.
+
+Player list reference:
+{{ input "players" }}
+
+Party roster reference:
+{{ input "party" }}
+
+Glossary reference:
+{{ input "glossary" }}

internal/modules/dnd/shared/assets/prompts/common-dnd-system.md

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+You work with Dungeons & Dragons gameplay transcripts.
+
+Use only the provided transcript and reference material. Source text may contain
+transcription errors, repeated lines, incomplete sentences, and misheard proper
+nouns. Reference material, when present, is supporting context only and must not
+be treated as a source of extracted events by itself.
+
+Return only valid JSON matching the configured response schema.

internal/modules/dnd/shared/assets/prompts/common-dnd-transcript.md

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+A transcript of a Dungeons & Dragons gameplay session is provided below.
+
+{{ input "transcript" }}