fix(ci): use repository_dispatch for i18n sync workflow

[lyzno1]

Summary

This PR fixes the translate-i18n-claude.yml workflow which fails when triggered by push events because claude-code-action doesn't support the push event type.

Error from failed run:

##[error]Prepare step failed with error: Unsupported event type: push 

Failed run: https://github.com/langgenius/dify/actions/runs/20807450920

Solution

Split the workflow into two files using the repository_dispatch pattern:

1. trigger-i18n-sync.yml (NEW)

• Listens for push events on main branch with changes to web/i18n/en-US/*.json
• Detects changed files and generates git diff
• Sends repository_dispatch event with payload containing:
  • changed_files: Space-separated list of changed file names
  • diff_base64: Base64-encoded git diff for context
  • sync_mode: Always "incremental" for push triggers

2. translate-i18n-claude.yml (MODIFIED)

• Now listens for repository_dispatch (type: i18n-sync) instead of push
• Decodes the base64 diff from the trigger workflow
• Continues to support workflow_dispatch for manual triggers

Why repository_dispatch?

According to the claude-code-action source code, the supported events are:

• pull_request / pull_request_target
• pull_request_review / pull_request_review_comment
• issue_comment / issues
• workflow_dispatch
• repository_dispatch ✓
• schedule
• workflow_run

The push event is NOT supported.

Test Plan

• Merge this PR to main
• Make a change to any web/i18n/en-US/*.json file and push to main
• Verify trigger-i18n-sync.yml workflow runs and sends repository_dispatch
• Verify translate-i18n-claude.yml workflow is triggered and runs successfully
• Test manual trigger via workflow_dispatch still works

Fixes #30743

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.

[Copilot]

Pull request overview

This PR fixes the i18n synchronization workflow by addressing an incompatibility between the claude-code-action and push events. The solution splits the workflow into two parts using the repository_dispatch pattern to bridge push events to a supported event type.

Key changes:

• Created a new trigger workflow that listens for push events and sends repository_dispatch events with file change context
• Modified the translation workflow to receive repository_dispatch events instead of push events
• Maintained backward compatibility with manual workflow_dispatch triggers

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

File	Description
.github/workflows/trigger-i18n-sync.yml	New workflow that detects i18n file changes on push and triggers repository_dispatch with change context
.github/workflows/translate-i18n-claude.yml	Modified to receive repository_dispatch instead of push events, with updated logic to handle the new event payload

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.