doc(IDom2HtmlService): update documentation

[Copilot]

Link issues

close #7890

Summary By Copilot

Dom2Image docs were missing required runtime setup details, which could cause service resolution or large-payload transfer failures.
This update adds explicit bilingual guidance for both manual service registration and SignalR message-size configuration.

• Dom2Images demo doc content

  • Added a Tips block in Dom2Images.razor before the demo.
  • Documented required manual DI registration for Dom2Image service.
  • Documented required SignalR MaximumReceiveMessageSize setup using a concrete 10 MB example.

• Localization (zh-CN / en-US)

  • Added localized keys:
    • Dom2ImageServiceInjectTip
    • Dom2ImageSignalRConfigTip
  • Wired new keys into the Dom2Images sample page so both locales render the same setup guidance.

builder.Services.AddBootstrapBlazorDom2ImageService();

builder.Services.AddSignalR(options =>
{
    options.MaximumReceiveMessageSize = 10 * 1024 * 1024; // 10 MB
});

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

Summary by Sourcery

Document required runtime configuration for the Dom2Images sample, including DI setup and SignalR payload limits.

Documentation:

• Add a tips section to the Dom2Images sample page explaining required Dom2Image service registration and SignalR MaximumReceiveMessageSize configuration.
• Localize the new Dom2Images setup guidance for both en-US and zh-CN so the tips are available in both languages.

[bb-auto]

Thanks for your PR, @copilot. Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates the Dom2Images sample documentation to show required DI setup for Dom2Image and SignalR message-size configuration, and wires corresponding localized strings in both en-US and zh-CN locale files.

Sequence diagram for Dom2Images sample using Dom2Image service and SignalR

sequenceDiagram
    actor User
    participant Browser
    participant Dom2ImagesPage
    participant DIContainer
    participant Dom2ImageService
    participant SignalRHubDom2Image

    User->>Browser: Navigate to Dom2Images sample
    Browser->>Dom2ImagesPage: Render page
    Dom2ImagesPage->>DIContainer: Request Dom2ImageService
    DIContainer-->>Dom2ImagesPage: Provide Dom2ImageService instance

    User->>Browser: Trigger capture to image
    Browser->>Dom2ImagesPage: Invoke capture handler
    Dom2ImagesPage->>Dom2ImageService: Convert DOM to image payload
    Dom2ImageService-->>Dom2ImagesPage: Image payload

    Dom2ImagesPage->>SignalRHubDom2Image: Send image over SignalR
    Note over SignalRHubDom2Image: Enforces MaximumReceiveMessageSize (e.g. 10 MB)
    SignalRHubDom2Image-->>Dom2ImagesPage: Acknowledge or broadcast result
    Dom2ImagesPage-->>Browser: Update UI with generated image

Loading

File-Level Changes

Change	Details	Files
Add setup tips section to the Dom2Images sample explaining required DI and SignalR configuration.	Insert a Tips block before the demo content in the Dom2Images sample page. Render localized explanatory text for Dom2Image service registration using the page Localizer. Render localized explanatory text and a concrete code example for configuring SignalR MaximumReceiveMessageSize to 10 MB.	src/BootstrapBlazor.Server/Components/Samples/Dom2Images.razor
Introduce new localization resources for the Dom2Images setup tips in both English and Chinese.	Add Dom2ImageServiceInjectTip and Dom2ImageSignalRConfigTip entries to the en-US locale JSON file. Add Dom2ImageServiceInjectTip and Dom2ImageSignalRConfigTip entries to the zh-CN locale JSON file. Ensure the new keys match those referenced by the Dom2Images sample so both locales render the same guidance.	src/BootstrapBlazor.Server/Locales/en-US.json src/BootstrapBlazor.Server/Locales/zh-CN.json

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[h2ls]

noting

[Copilot]

Pull request overview

Updates the Dom2Image sample documentation in the BootstrapBlazor.Server demo to clarify required runtime setup (service registration + SignalR payload size) and provides the same guidance in both en-US and zh-CN locales.

Changes:

• Add a Tips block to the Dom2Images sample page showing DI registration and SignalR payload configuration guidance.
• Add localized strings (en-US / zh-CN) for the new guidance.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/BootstrapBlazor.Server/Locales/zh-CN.json	Adds zh-CN localized tips for Dom2Image setup guidance.
src/BootstrapBlazor.Server/Locales/en-US.json	Adds en-US localized tips for Dom2Image setup guidance.
src/BootstrapBlazor.Server/Components/Samples/Dom2Images.razor	Renders the new localized Tips block and configuration snippets on the Dom2Image sample page.

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (77bb3ef) to head (58fea1d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #7885   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          764       764           
  Lines        34173     34173           
  Branches      4702      4702           
=========================================
  Hits         34173     34173           

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