[anycodes]

Description

Remove the uncalled private _a() alias-construction wrapper. Public aliases, schema, package versions and server implementation are preserved. Fixes #146.

Type of Change

• Refactoring
• Documentation

Changes

• Reuse existing behavior coverage for deletion-only maintenance.
• Add bilingual architecture guidance, Unreleased changelog, decision and verification evidence.
• Record preserved compatibility arguments, generator semantics and lifecycle candidates separately.

Testing

• Latest-head CI passed: full Python 3.10/3.11/3.12 client/server matrix, public contract, runtime fixtures and Node provider engine; Docs links passed.
• Local lint, formatting, mypy, both distribution builds and clean installation checks passed. Client tests: 2,345 passed / 26 skipped / 10 deselected.
• Two local raw-HTTP server tests failed under altered sandbox forwarding; an independent HTTPServer negative control reproduced that behavior. The unchanged assertions pass in the remote matrix.
• Real-cloud acceptance: 130 passing cases across the initial run and corrected single-case CLI invocation; 11 optional/conditional skips and 2 slow-case deselections remain explicit.
• Run-scoped janitor dry run and subsequent independent inventory: no sandboxes remained. No API-key preparation or renewal was attempted.

Checklist / Definition of Done

• Required current-head CI and remote unit matrix pass
• Real-component acceptance and independent cleanup recorded
• Proposed decision and evidence indexed under .agents/
• English/Chinese docs and Unreleased changelog updated
• Repository health: 106 pass / 1 warning / 0 failures
• No sensitive information included

Verification records exact scope, commands, initial failures and limitations.

[anycodes]

Verified actual squash merge after all current-head workflow runs and jobs passed. Merge commit: c7a6635. CI: https://github.com/Alibaba-Agent-Sandbox/python-sdk/actions/runs/40477035278, https://github.com/Alibaba-Agent-Sandbox/python-sdk/actions/runs/40477035155. Verification details and initial failures/skips remain recorded in the PR evidence file. No manual release or deployment was performed.