[Issue]: Role of TASC within the PDAP v2

### Issue Title

Role of TASC within the PDAP v2

### Issue Type

Directive Document

### Problem Statement

During the workshop we developed the role of TASC within the new PDAP. What we do and what to expect from TASC (no document developed yet). This is all within the notes of the 2026 TASC workshop

### Scope Validation

We are formalising what the role of TASC is in the PDAP and will be the core of how we act.

### Proposed Solution(s)

Document the process agreed and create an ADR. See the issue concerning our GitHub repo process

### Estimated Effort Level

Low (1-2 months, minimal resources)

### Success Criteria

_No response_

### How will this issue aid GA4GH harmonization?

PDAP support. Consistent description of the role

### Additional context

Please provide any additional pieces of information you feel is relevant to this issue

### Work Streams Raising This Issue

- [ ] Clinical & Phenotypic Data (Clin/Pheno)
- [ ] Cloud Work Stream
- [ ] Data Security
- [ ] Data Use & Researcher IDs (DURI)
- [ ] Discovery
- [ ] Genomic Knowledge Standards (GKS)
- [ ] Large Scale Genomics (LSG)
- [ ] Regulatory & Ethics (REWS)
- [ ] Data Models & Schemas Committee (DaMaSC)
- [ ] Genomic Implementation Forum (GIF)
- [ ] Technical Team
- [ ] Other (specify below)

### Other Groups Raising This Issue

_No response_

### Work Streams That Will Be Impacted

- [ ] Clinical & Phenotypic Data (Clin/Pheno)
- [ ] Cloud Work Stream
- [ ] Data Security
- [ ] Data Use & Researcher IDs (DURI)
- [ ] Discovery
- [ ] Genomic Knowledge Standards (GKS)
- [ ] Large Scale Genomics (LSG)
- [ ] Regulatory & Ethics (REWS)
- [ ] Data Models & Schemas Committee (DaMaSC)
- [ ] Genomic Implementation Forum (GIF)
- [ ] Technical Team
- [ ] Other (specify below)

### Other Groups That Will Be Impacted

_No response_

### Key Stakeholders to Consult

_No response_

### Products affected

Please list them here. It does not need to be exhaustive

### Additional Context

_No response_

### Priority Level

Critical (blocking multiple work streams, immediate attention needed)

### Additional Tags

- [ ] Documentation
- [ ] API
- [ ] Schema
- [ ] Security
- [ ] Performance
- [ ] Interoperability
- [ ] Compliance
- [ ] User Experience
- [ ] Infrastructure
- [ ] Testing