docs(FR-2603): apply 26.4 model serving doc feedback — service launcher fields, vLLM/SGLang runtime params

[agatha197]

Resolves #6803 (FR-2603)

Summary

Addresses additional Sujin feedback on the 26.4 model serving docs, stacked on top of #6778.

• Service Launcher fields: Refined descriptions for Service Name, Open To Public, Model Storage Folder to Mount, Inference Runtime Variant, and Environment / Version across en/ja/ko/th.
• Runtime parameters: Split into vLLM and SGLang subsections reflecting the new tab-based UI (Model Loading / Resource Memory / Serving Performance / Multimodal / Tool Reasoning). Documented Model Loading tab fields (Model, DType, Quantization, Max Model Length / Context Length, Served Model Name, Trust Remote Code).
• Legacy section removal: Removed the <details> block about model service configuration in version 23.03 and earlier. Moved the Custom runtime workflow (model / service definition files) behind a collapsible block below the 26.4 quick-deploy flow so the default path is visible first.
• Command mode section: Moved the command-mode screenshot before the field list and consolidated the field bullets (start command, model mount, port auto-detect, health check URL auto-detect, initial delay, max retries).
• Port / Health URL / Mount auto-detection: Clarified that these fields are auto-detected from the start command.
• Scale Out/In sentence removal: Removed the sentence referencing the explicit Scale Out / Scale In selector, since the step-size column now infers direction automatically.
• Drawer error alert rendering fix: Changed *No compatible presets available. This model cannot be deployed.* to **...** so it renders as bold (the original italic was not rendering reliably next to CJK characters).
• Screenshots: Refreshed service_launcher1.png and service_launcher_command_mode.png for ko. Added new service_launcher_runtime_params_vllm.png and service_launcher_runtime_params_sglang.png for ko.

Test plan

• Render the ko docs locally and verify the drawer error alert in the Model Store section renders as bold (no stray * characters).
• Verify the Service Launcher field list and the command-mode subsection show the updated labels and screenshots.
• Verify the vLLM and SGLang runtime parameters subsections render with the new per-tab field descriptions and the new screenshots.
• Regenerate the ko PDF (pnpm run pdf:ko) and confirm pages 121–122 show the updated vLLM / SGLang runtime parameter images and that 그림 15.6 shows the updated service launcher view.

[Copilot]

Pull request overview

Updates the Backend.AI WebUI user manual (Model Serving) to reflect the 26.4 Service Launcher UI changes, including revised field descriptions and the new tab-based runtime parameters for vLLM and SGLang, with corresponding screenshot updates.

Changes:

• Reworked the “steps/workflow” section to emphasize 26.4 quick deploy + Service Launcher, and moved Custom runtime file-based workflow into a collapsible “Advanced” block.
• Updated Service Launcher field descriptions and the command-mode field list (auto-detected Port/Health URL/Mount, plus retry/delay fields).
• Split runtime parameters into vLLM vs SGLang subsections and added/updated screenshots (notably in ko).

Reviewed changes

Copilot reviewed 4 out of 8 changed files in this pull request and generated 13 comments.

Show a summary per file

File	Description
packages/backend.ai-webui-docs/src/en/model_serving/model_serving.md	Reorganized workflow/advanced section; updated launcher fields and runtime parameter docs (vLLM/SGLang).
packages/backend.ai-webui-docs/src/ja/model_serving/model_serving.md	Japanese translation updates aligned to the new launcher/runtime-params UI structure.
packages/backend.ai-webui-docs/src/ko/model_serving/model_serving.md	Korean updates for launcher fields/runtime params; also adjusts Model Store error emphasis.
packages/backend.ai-webui-docs/src/th/model_serving/model_serving.md	Thai translation updates aligned to the new launcher/runtime-params UI structure.
packages/backend.ai-webui-docs/src/ko/images/service_launcher_command_mode.png	Updated Service Launcher command-mode screenshot asset.

[agatha197]

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• docs(FR-2624): translate remaining English headings in ja and th docs #6846
• docs(FR-2623): reorganize admin model serving docs and remove clone references #6844
• docs(FR-2603): add health check SVG diagrams for all 4 languages, replace ASCII art #6839
• docs(FR-2603): update auto scaling V2 screenshots, fix bold rendering, correct health check initial status, revise condition/cooldown terminology #6807
• docs(FR-2603): apply 26.4 model serving doc feedback — service launcher fields, vLLM/SGLang runtime params #6804 👈 (View in Graphite)
• docs(FR-2571): address 26.4 docs feedback — remove legacy model serving sections and apply KO wording fixes #6778
• docs: add endpoint detail page revision info, alert banners, and edit behavior docs #6767
• docs(FR-2571): document Model Store V2 and Auto Scaling Rules V2 (26.4.0+) #6760
• docs(FR-2571): address PR #6631 review feedback (excl. model store) #6708
• docs(FR-2571): add Allowed Client IPs field to My Account dialog documentation #6631 : 1 other dependent PR (#6633 )
• docs(FR-2570): recapture login screenshots with TOTP OTP screen in light mode #6630
• docs(FR-2569): recapture start_announcement_banner in light mode #6625
• docs(FR-2543): update model serving documentation with new features #6611
• docs(FR-2542): update date selection UI in statistics documentation #6580
• docs(FR-2541): fix permission label formatting in vfolder documentation #6579
• docs(FR-2540): fix session type filters in session_page documentation #6578
• docs(FR-2539): update copy button location in my_environments documentation #6577
• docs(FR-2538): fix button labels in import_run documentation #6576
• docs(FR-2537): add board customization and auto-refresh to dashboard docs #6575
• main

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