[LABS-291] Port get_farmed_amount to @marshal

[Quexington]

Another PR following #18593

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Note

Migrates get_farmed_amount to a marshaled, typed RPC using GetFarmedAmount and GetFarmedAmountResponse, updating client/CLI usage and tests.

• RPC/API:
  • Convert wallet_rpc_api.get_farmed_amount to @marshal with typed GetFarmedAmount -> GetFarmedAmountResponse.
  • Add new streamables: GetFarmedAmount and GetFarmedAmountResponse in wallet_request_types.py.
  • Update WalletRpcClient.get_farmed_amount to accept request object and return typed response.
• CLI (chia/cmds/farm_funcs.py):
  • Update get_wallets_stats to use GetFarmedAmount and return GetFarmedAmountResponse.
  • Adjust summary output to use attributes instead of dict keys.
• Tests:
  • Update wallet RPC tests to call get_farmed_amount(GetFarmedAmount()) and assert against GetFarmedAmountResponse and attributes.

^{Written by Cursor Bugbot for commit 824cbe6. This will update automatically on new commits. Configure here.}

[github-actions]

File	Coverage	Missing Lines
chia/cmds/farm_funcs.py	81.8%	lines 136-137

Total	Missing	Coverage
35 lines	2 lines	94%

[coveralls-official]

Pull Request Test Coverage Report for Build 20079371249

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 33 of 35 (94.29%) changed or added relevant lines in 5 files are covered.
• 53 unchanged lines in 9 files lost coverage.
• Overall coverage decreased (-0.03%) to 90.796%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
chia/cmds/farm_funcs.py	9	11	81.82%

Files with Coverage Reduction	New Missed Lines	%
chia/full_node/full_node.py	1	87.14%
chia/_tests/simulation/test_simulation.py	1	96.47%
chia/wallet/wallet_node.py	1	86.69%
chia/timelord/timelord_launcher.py	2	71.43%
chia/server/server.py	4	84.99%
chia/introducer/introducer_api.py	5	81.48%
chia/server/node_discovery.py	5	80.5%
chia/timelord/timelord.py	12	71.68%
chia/_tests/core/util/test_lockfile.py	22	77.42%

Totals
Change from base Build 20078789497:	-0.03%
Covered Lines:	102750
Relevant Lines:	112995

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💛 - Coveralls