Implements deterministic model resolution (column → env map → pool →
default) and adds AI identity fields to characters. Migration backfills
existing rows with deterministic defaults. Controller uses resolved model
and identity block in system prompts for contextual conversations.
Implements proximity-based street conversations between player characters and peers (human or agentic NPC). New PersonTalk model, controller, and migrations store daily message threads that persist across sessions and provide context for future interactions. Agent replies include backoff throttling and fallback persona handling to avoid dead-end chats.
Frontend changes refactor the chat panel to support both character and agent peers, opening automatically when the player moves within range, polling for replies, rendering day separators, and displaying rate-limit warnings. Styling updated to a transparent blurred panel. Translations extended with new hint text and rate-limit messages across en, es, and pt_BR.