CLI: one-line program error messages + alw vault deposit --amount

[LandynDev]

Two operator-facing CLI fixes from the miner-setup feedback notes.

1. Program rejections reached the operator as a traceback

alw bind-hotkey with no SOL collateral dumped a 40-line traceback ending in the raw RPC dict. Every command that catches only SolanaClientError had the same hole: _send raises SolanaRpcError (a separate class) on pre-flight reject, landed-tx failure, and confirm timeout.

• StyledGroup.invoke is now the single choke point: any SolanaClientError / SolanaRpcError escaping a subcommand routes through fail() (exit 1, JSON-mode aware). No command needs its own wrapper for this class.
• program_error_code() in solana/client.py reads the Anchor code from all three shapes: Error Number: N, custom program error: 0xHEX, {'Custom': N}.
• PROGRAM_ERRORS is loaded from the packaged IDL, so every one of the 68 codes has a one-line message. _ERROR_CODES is now derived from it instead of hand-typed.
• PROGRAM_ERROR_HINTS overrides the IDL text where it is not actionable from the CLI: 6002 → Deposit collateral first: alw collateral deposit, 6003 → alw miner deactivate, 6015 → alw miner activate.
• Non-program RPC failures keep only the RPC message line, never the dict.

$ alw bind-hotkey --yes
Deposit collateral first: alw collateral deposit (InsufficientCollateral 6002)
$ echo $?
1

2. SOL vs TAO collateral commands read as two different tools

Before: alw collateral deposit --amount X (SOL) vs alw vault post-collateral X (TAO). Different verb, different arg style.

• alw vault post-collateral AMOUNT → alw vault deposit --amount X. post-collateral stays as an alias.
• alw vault withdraw AMOUNT → alw vault withdraw --amount X.
• Both prompt for the amount when the flag is omitted, same as the SOL commands.
• Help text on each group and command names its twin.
• README, e2e_lock.sh, and the activation-guidance strings updated. allways-docs-ui and optimal-allways-miner README still show the positional form; the alias keeps the name working but the positional amount needs a docs follow-up.

Tests

• test_cli_miner_solana.py: bind-hotkey on 6002 exits 1 with the one-line hint, no traceback, no RPC dict.
• test_cli_program_errors.py: code parsing for all three shapes, IDL-sourced table, hint vs IDL fallback, RPC message line fallback.
• test_cli_vault_admin.py: vault deposit --amount and the post-collateral alias both post the right rao.

Full suite: 2064 passed; the 3 test_bitcoin_signing.py failures are pre-existing on test.