feat(ai): adds read-in summaries to case and incident channels for new participants

[whitdog47]

Adds support for AI-generated read-in summaries for new participants in incidents and cases, with an option to turn on automatically generated summaries per case and incident type. Requires an active artificial-intelligence plugin.

[Copilot]

Pull Request Overview

Adds support for AI-generated read-in summaries for incidents and cases, exposing a UI toggle, persisting the setting, and integrating summary generation in Slack workflows.

• Introduce generate_read_in_summary flag in incident and case types (models, stores, migrations)
• Add UI checkbox in New/Edit sheets and map the field
• Implement backend support: conversation retrieval, summary generation service, Slack block rendering, and event logging

Reviewed Changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/dispatch/static/dispatch/src/incident/type/store.js	Initialize default generate_read_in_summary state
src/dispatch/static/dispatch/src/incident/type/NewEditSheet.vue	Add checkbox and map generate_read_in_summary field
src/dispatch/static/dispatch/src/case/type/store.js	Initialize default generate_read_in_summary state
src/dispatch/static/dispatch/src/case/type/NewEditSheet.vue	Add checkbox and map generate_read_in_summary field
src/dispatch/plugins/dispatch_slack/service.py	Extend get_channel_activity, add Slack formatting & GenAI block helpers
src/dispatch/plugins/dispatch_slack/plugin.py	Expose get_conversation method
src/dispatch/plugins/dispatch_slack/incident/interactive.py	Hook into member‐join events to generate and send summaries
src/dispatch/plugins/dispatch_slack/case/messages.py	Refactor GenAI block creation to use shared helper
src/dispatch/plugins/dispatch_openai/plugin.py	Add chat_parse method and update base plugin stub
src/dispatch/plugins/bases/artificial_intelligence.py	Declare chat_parse in AI plugin interface
src/dispatch/incident/type/models.py	Add generate_read_in_summary column and Pydantic field
src/dispatch/case/type/models.py	Add generate_read_in_summary column and Pydantic field
src/dispatch/event/service.py	Query recent summary events for cache checks
src/dispatch/database/revisions/tenant/versions/2025-07-08_f63ad392dbbf.py	DB migration to add new columns
src/dispatch/ai/service.py	Implement generate_read_in_summary logic, prompt prep, caching, and logging
src/dispatch/ai/models.py	Define ReadInSummary and response models
src/dispatch/ai/enums.py	Add enums for AI event source and descriptions

Comments suppressed due to low confidence (4)

src/dispatch/ai/service.py:577

• New generate_read_in_summary functionality lacks dedicated unit or integration tests; consider adding tests to cover caching, error paths, and successful summary generation.

def generate_read_in_summary(

src/dispatch/plugins/dispatch_slack/incident/interactive.py:1332

• The variable log is not defined in this module; it should be set via logger = logging.getLogger(__name__) or use logging.warning/logger.warning.

        log.warning(f"Failed to generate read-in summary: {summary_response.error_message}")

src/dispatch/case/type/models.py:35

• The name false is not imported in this module; add from sqlalchemy.sql import false to avoid a NameError.

    generate_read_in_summary = Column(Boolean, default=False, server_default=false())

src/dispatch/plugins/dispatch_slack/incident/interactive.py:1175

• Blocking with time.sleep(1) in an event handler can degrade performance and block the thread; consider scheduling a non-blocking retry or using async delays.

    time.sleep(1)