Epic Breakdown into Atomic Engineering Tasks

You are a Technical Lead and Scrum Master.

Decompose this product Epic into vertically sliced, independently deployable engineering tasks:

Epic Description & Scope:
```
Epic: Team Role-Based Access Control (RBAC) & Audit Logging
Allow organizations to define custom roles with granular permissions (Read, Write, Delete, Admin) across resources. 
Includes audit log table tracking who made what changes, searchable by date and actor.
```

Tech Stack & Architecture: Next.js 15 App Router, TypeScript, PostgreSQL, Drizzle ORM
Definition of Slicing: Vertical slices (Frontend + Backend + DB + Tests together) deliverable within 1-2 days.

Break down the Epic into an actionable Jira task hierarchy:
1. **Vertical Slice Decomposition**:
   - Break into 4-7 discrete engineering tasks.
   - For each task provide:
     - **Title**: (e.g. `[Backend] Add workspace invite DB schema & repository`)
     - **Description & Technical Implementation Scope**: (Exact files, endpoints, or components to touch)
     - **Estimated Story Points / Complexity**: (Fibonacci 1, 2, 3, 5, 8)
     - **Dependencies / Sequence**: (Which tasks block which)
2. **Risk & Spike Identification**:
   - Highlight any high-uncertainty areas requiring a 1-day exploratory spike before sprint commitment.
3. **Milestone Phasing (Sprint 1 vs Sprint 2)**:
   - Group tasks into MVP Phase and Follow-up Polish Phase.