## Stack context
This is the final PR in the V5 documentation stack and changes only the local development command.
## What and why
Run Mintlify through an isolated Node 22 runtime so `bun dev` works on machines whose active Node version is newer than Mintlify supports. The wrapper preserves Portless and the existing fixed docs port.
```mermaid
flowchart LR
Command[bun dev] --> Portless[Portless proxy]
Portless --> Wrapper[scripts/dev.sh]
Wrapper --> Runtime[Node 22 plus Mintlify]
```
## Validation
- `bash -n apps/docs/scripts/dev.sh`: passed.
- Mintlify validation under the Node 22 wrapper: passed.
- No dependency or lockfile changes are included.
## Impact
Local development only. Production documentation output is unchanged.
