feat: revert model total credits

[CodingOnStar]

Reverts #26942

[gemini-code-assist]

Summary of Changes

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This pull request performs a comprehensive revert of a previously introduced feature concerning model total credits. The rollback primarily impacts the frontend, leading to the removal of various LLM provider icons, simplification of the quota display mechanism, and updates to user-facing text to reflect a more focused set of supported models for message credits. Additionally, some minor refactoring of icon rendering types and application context definitions is included.

Highlights

• Feature Revert: This pull request reverts the 'feat: model total credits' feature, specifically rolling back changes introduced in langgenius/dify#26942.
• Icon and Asset Removal: Numerous SVG icon files, along with their corresponding JSON data and TypeScript React components, have been removed. These include icons for various LLM providers such as Tongyi, Anthropic Short Light, Deepseek, Gemini, Grok, and several OpenAI variants.
• Quota System Simplification: The logic for displaying model provider quotas has been simplified. The QuotaPanel component was refactored to remove multi-provider icon display and marketplace integration, now focusing on a single provider's quota. Related context and utility functions for quota management have also been streamlined.
• UI Text Updates: Internationalization (i18n) files have been updated across English, Japanese, and Simplified Chinese to reflect the changes. Specifically, tooltips and descriptions related to message credits now refer primarily to OpenAI models, removing mentions of other LLMs like Gemini, xAI, DeepSeek, and Tongyi.
• Context and Type Definition Refactoring: The AppContextValue and ICurrentWorkspace types have been updated to remove properties related to trial_credits, trial_credits_used, next_credit_reset_date, and isValidatingCurrentWorkspace, aligning with the reverted feature.

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[gemini-code-assist]

Code Review

This pull request reverts the "feat: model total credits" feature. The changes mostly involve removing code related to trial credits and a global quota panel, which seems correct given the goal of the PR. I've also noticed some unrelated fixes and refactoring. My review includes a couple of suggestions for improvement: one regarding an incorrect TypeScript type for a ref prop in several icon components, and another questioning a change in dimensions for an icon that might be unintentional. Overall, the revert appears to be on the right track.

[Copilot]

Pull request overview

This PR reverts the "model total credits" feature (PR #26942), removing credit tracking functionality from the workspace context and UI components.

Key changes:

• Removed workspace credit fields (trial_credits, trial_credits_used, next_credit_reset_date)
• Reverted quota panel component from unified credits display back to per-provider quotas
• Removed provider-specific icon files and enums for Gemini, xAI, DeepSeek, and Tongyi
• Simplified i18n strings to reference only OpenAI instead of multiple providers

Reviewed changes

Copilot reviewed 40 out of 46 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
web/models/common.ts	Removed credit-related fields from ICurrentWorkspace type
web/context/app-context.tsx	Removed isValidatingCurrentWorkspace and credit initialization
web/i18n/**/common.json	Reverted model provider strings and removed credit reset date string
web/i18n/**/billing.json	Simplified message credit tooltip to reference only OpenAI
web/app/components/header/account-setting/model-provider-page/utils.ts	Removed ModelProviderQuotaGetPaid enum and modelNameMap
web/app/components/header/account-setting/model-provider-page/provider-added-card/quota-panel.tsx	Reverted from unified credit display to per-provider quota panel
web/app/components/header/account-setting/model-provider-page/provider-added-card/index.tsx	Renamed showModelProvider to showQuota and restored QuotaPanel import
web/app/components/header/account-setting/model-provider-page/provider-added-card/credential-panel.tsx	Removed IS_CLOUD_EDITION conditional checks
web/app/components/header/account-setting/model-provider-page/index.tsx	Removed QuotaPanel component and mutateCurrentWorkspace effect
web/app/components/plugins/provider-card.tsx	Added empty parentheses to onSuccess callback
web/app/components/billing/apps-full-in-dialog/index.spec.tsx	Removed credit fields from test mock data
web/app/components/base/icons/src/public/llm/*	Removed icon files for Gemini, xAI, DeepSeek, Tongyi, and OpenAI variants
web/app/components/base/icons/src/public/tracing/*	Fixed ref type and JSON attribute ordering in icon files

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