View the full audit trail of their tree assets

## 🧑‍💼 Role
**User**

## 📝 Description
As a user,
I want to view the full audit trail of a tree
So that I can track its lifecycle and verification events.

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## ✅ Acceptance Criteria

- [ ] App invokes chaincode function:
`GetHistoryForKey(treeID)`
- [ ] Returns a list of transactions including:
- Tree creation
- Verification
- Token issuance
- [ ] Renders a **timeline view** in the app showing the tree’s lifecycle

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## 🔧 Sub-tasks

- [ ] Build **timeline UI** to visualize audit trail
- [ ] Implement **chaincode function or backend API** to fetch history for `treeID`
- [ ] Display events with **status icons** and **timestamps** in chronological order

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## 📅 Sprint Info

| Attribute | Value |
|----------------|----------------------------|
| **Sprint** | 5 |
| **Priority** | Low |
| **Assignee** | Mobile + Blockchain Dev |
| **Story Points**| 5 |

Start by tracing the Android app entry point for a tree detail view and the chaincode function GetHistoryForKey(treeID), since no files or tests are named. Implement history retrieval and a chronological timeline with status icons and timestamps; done means creation, verification, and token issuance events are displayed.

Written by the indexing model from the issue text.