docs: rename WSProxy to App Proxy across the manual

[yomybaby]

⚠️ Review note — please review in #7472.
During review, several factual inaccuracies were found in this PR and corrected in the stacked follow-up #7472 (docs(FR-2916): correct WSProxy→App Proxy rename inaccuracies and recapture resource group screenshots).

#7472 contains the corrected, reviewable state, including:

• overview.md (en/ko/ja/th) reverted to main — its Local/Web wsproxy section describes the WebUI client-side proxy, not the renamed server-side App Proxy (out of scope here)
• TERMINOLOGY.md corrected — there is no internal wsproxy daemon (v1 = Manager-embedded stream proxy; v2 = separate App Proxy Coordinator + Worker)
• (formerly WSProxy) parenthetical removed across the manual; v1/v2 fallback sentence trimmed
• modify_resource_group.png / create_resource_group.png recaptured in all 4 languages

Review #7472 for the final intended content; this PR is the base of that correction stack.

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Documentation-side follow-through of the WSProxy → App Proxy rename (i18n keys/values renamed in FR-2841, #7300).

Renames the user-facing "WSProxy" label to "App Proxy" across the user manual (en/ko/ja/th):

• Resource group settings fields (App Proxy Server Address / App Proxy API Token) in admin_menu.md
• Troubleshooting guide reference in trouble_shooting.md
• Hardware requirements list in appendix.md
• New "App Proxy" terminology entry in TERMINOLOGY.md

The exact corrected scope is captured in stacked PR #7472 (see review note above).

Checklist:

• Documentation
• Minimum required manager version
• Specific setting for review (eg., KB link, endpoint or how to setup)
• Minimum requirements to check during review
• Test case(s) to demonstrate the difference of before/after

[yomybaby]

• docs: rename WSProxy to App Proxy across the manual #7442 : 2 dependent PRs (#7443 , #7472 ) 👈 (View in Graphite)
• main

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[Copilot]

Pull request overview

This PR renames the user-facing label "WSProxy" to "App Proxy" across the Backend.AI WebUI user manual to match the UI label change introduced in FR-2841, while preserving lowercase wsproxy in code style when the docs refer to the internal binary/daemon. A new terminology section codifies the rule across English, Korean, Japanese, and Thai.

Changes:

• Added an "App Proxy (formerly WSProxy)" entry plus a "do not use" row in TERMINOLOGY.md with per-language field labels.
• Updated overview, troubleshooting, and admin-menu pages in en, ko, ja, th to use "App Proxy" for UI references and to wrap daemon references in `wsproxy` code style.
• Verified the docs labels match the i18n strings (AppProxyAddress, AppProxyAPIToken) already shipped in resources/i18n/*.json.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/backend.ai-webui-docs/TERMINOLOGY.md	Adds App Proxy terminology section, per-language field labels, and a deprecation row.
packages/backend.ai-webui-docs/src/en/overview/overview.md	Switches daemon references to wsproxy code style and notes the App Proxy UI label.
packages/backend.ai-webui-docs/src/en/trouble_shooting/trouble_shooting.md	Renames WSProxy service mention to "App Proxy (formerly WSProxy)".
packages/backend.ai-webui-docs/src/en/admin_menu/admin_menu.md	Updates resource group field labels to App Proxy.
packages/backend.ai-webui-docs/src/ko/overview/overview.md	Korean equivalent of the overview update.
packages/backend.ai-webui-docs/src/ko/trouble_shooting/trouble_shooting.md	Korean troubleshooting rename.
packages/backend.ai-webui-docs/src/ko/admin_menu/admin_menu.md	Korean resource group field-label rename.
packages/backend.ai-webui-docs/src/ja/overview/overview.md	Japanese overview update.
packages/backend.ai-webui-docs/src/ja/trouble_shooting/trouble_shooting.md	Japanese troubleshooting rename.
packages/backend.ai-webui-docs/src/ja/admin_menu/admin_menu.md	Japanese resource group field-label rename.
packages/backend.ai-webui-docs/src/th/overview/overview.md	Thai overview update.
packages/backend.ai-webui-docs/src/th/trouble_shooting/trouble_shooting.md	Thai troubleshooting rename.
packages/backend.ai-webui-docs/src/th/admin_menu/admin_menu.md	Thai resource group field-label rename.

[ironAiken2]

LGTM