geolocation: standardize CLI flag naming and validators

[ben-dz]

Summary of Changes

• Standardize entity identification: probe mutation commands now use --probe (was --code) accepting pubkey or code; user mutation commands now accept pubkey or code via validate_pubkey_or_code (was code-only)
• Rename --signing-keypair → --signing-pubkey (it accepts a pubkey, not a keypair) and --target-pk → --target-signing-pubkey (spell out instead of abbreviating)
• Add --json-compact to probe get and user get (previously only available on list commands)

Diff Breakdown

Category	Files	Lines (+/-)	Net
Core logic	10	+358 / -89	+269
Tests	10	+49 / -12	+37
E2E	1	+3 / -3	0

Most of the net addition is resolution logic: non-create commands now resolve pubkey-or-code to a code via a get call before passing to the SDK.

Key files (click to expand)

• smartcontract/cli/src/geolocation/user/add_target.rs — --user accepts pubkey_or_code; --target-pk → --target-signing-pubkey; adds user resolution + test mocks
• smartcontract/cli/src/geolocation/user/remove_target.rs — same changes as add_target
• smartcontract/cli/src/geolocation/probe/update.rs — --code → --probe with pubkey_or_code; --signing-keypair → --signing-pubkey; adds probe resolution
• smartcontract/cli/src/geolocation/probe/add_parent.rs — --code → --probe with pubkey_or_code; adds probe resolution
• smartcontract/cli/src/geolocation/probe/delete.rs — --code → --probe with pubkey_or_code; adds probe resolution
• smartcontract/cli/src/geolocation/user/update_payment_status.rs — --user accepts pubkey_or_code; adds user resolution
• smartcontract/cli/src/geolocation/user/delete.rs — --user accepts pubkey_or_code; adds user resolution
• smartcontract/cli/src/geolocation/probe/get.rs — adds --json-compact; display field signing_keypair → signing_pubkey

Testing Verification

• All 38 geolocation CLI unit tests pass
• Clippy clean with -Dclippy::all -Dwarnings
• E2E tests compile (go build -tags e2e ./e2e/...)
• Infra repo verified: no references to the renamed geolocation CLI flags