feat: add id command to read personal identity items

[zmainen]

What

Adds a read-only dcli id command that retrieves structured personal identity items from the local vault: passports, ID cards, identities, driver's licenses, social security IDs, and tax numbers (fiscal statements).

Why

These item types are already synced into the local vault by dcli sync and decrypt with the existing crypto path — but there was no command to display them. Today password, note, and secret are the only personal-data readers, so passports/IDs/tax-numbers are invisible from the CLI even though the data is present locally. This closes that gap.

How

The handler (command-handlers/personalInfo.ts) mirrors secureNotes.ts:

• selects transactions of types IDENTITY, PASSPORT, IDCARD, DRIVERLICENSE, SOCIALSECURITYID, FISCALSTATEMENT with action = 'BACKUP_EDIT'
• reuses the generic decryptTransactions (no crypto changes)
• exposes every KWDataItem field dynamically — the item's root element name varies by type (KWPassport, KWIDCard, KWIdentity, …), so it's read generically rather than hard-coding fields. This keeps it robust across all personal-info types and any fields they carry.
• tags each item with its transaction type (primary filter key) and kwType

Supports text and json output and the standard <param>=<value> filter syntax, consistent with the other read commands.

dcli id                                   # all personal ID items (text)
dcli id -o json                           # all items, all fields, as JSON
dcli id type=passport                     # only passports
dcli id type=fiscalstatement firstName=john

Notes

• Read-only, consistent with the rest of the vault-access surface.
• No new dependencies; types added to types.ts (PersonalInfoTransactionContent, VaultId) following the existing SecureNote/Secret pattern.
• Docs added under documentation/pages/personal/vault.mdx.
• yarn lint clean; yarn build succeeds; verified end-to-end against a real vault (passport / ID card / identity / fiscal-statement items returned and decrypted correctly in both output modes).