feat: Added ai usage analytics

[irfanuddinahmad]

This pull request introduces a unified domain-layer schema for AI-assisted coding activity, adds migration scripts to support the new schema, implements foundational API logic and new Claude, Cursor and Codex plugins. Additionally, it introduces a per-user project mapping table to support Grafana dashboard visibility and registers all new migrations. The most important changes are grouped below:

AI Activity Unified Schema and Migrations:

• Added the AiActivity domain model in backend/core/models/domainlayer/ai/ai_activity.go to represent normalized, tool-agnostic records of AI-assisted coding activity. This model supports multiple providers and includes fields for code metrics, agentic outcomes, and cost/token metrics.
• Introduced migration script 20260331_add_ai_activities_unified_schema.go to add and update the ai_activities table, including renaming legacy columns, and adding new fields for interface type and suggestion/acceptance counts.
• Registered the new AiActivity table in the domain info registry and included it in the list of domain tables. [1] [2]

User-Project Mapping for Grafana:

• Added a new user_project_mapping table and its migration script (20260311_add_user_project_mapping.go) to map user logins to project names, enabling per-user project visibility in Grafana dashboards. [1] [2]

These changes lay the groundwork for unified AI activity analytics and support for new AI tool plugins, while improving user/project management and plugin extensibility.

[github-actions]

license-eye has checked 4044 files.

Valid	Invalid	Ignored	Fixed
3164	2	878	0

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• backend/plugins/codex/service/connection_test_helper.go
• backend/plugins/cursor/service/connection_test_helper.go

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