Write 'Token Management' from Solidity (evm/hedera-services/hts-solidity/token-management)

**Page:** `evm/hedera-services/hts-solidity/token-management.mdx`

**Scope:** Pause / freeze / wipe / KYC / update from Solidity; key requirements per operation. Working Solidity examples.

### Acceptance criteria
- [ ] Replace the placeholder template with real content
- [ ] Remove `hidden: true` from the frontmatter
- [ ] Follow the style guide: **markdown tables only** (no HTML ``), and avoid AI-tell phrasing (no em-dashes, "delve", "leverage", "not just X but Y")
- [ ] Add working cross-links to related pages
- [ ] Confirm any code samples run on testnet