feat: Add Reverse Metadata Agent pipeline type support

[aji-aju]

Summary

• Add reverseMetadataPipeline.json schema with sync toggles (syncDescriptions, syncTags, syncOwners) and filter patterns (databaseFilterPattern, schemaFilterPattern, tableFilterPattern)
• Add REVERSE_METADATA to pipelineType enum in ingestionPipeline.json
• Add reverseMetadata command to ingestion CLI (cmd.py)
• Add deployReverseMetadata method to PipelineServiceClientInterface

Context

Migrating Reverse Metadata from an Application to an Agent (ingestion pipeline). This PR contains the OSS-level schema and interface changes. The corresponding Collate PR contains the workflow implementation, config builder, and CLI integration.

Linked Issue

• https://github.com/open-metadata/openmetadata-collate/issues/3660

Test plan

• Verify JSON schema validation passes for reverseMetadataPipeline.json
• Verify mvn clean install -DskipTests builds successfully with new schema
• Verify reverseMetadata CLI command is registered correctly

🤖 Generated with Claude Code

[github-actions]

Hi there 👋 Thanks for your contribution!

The OpenMetadata team will review the PR shortly! Once it has been labeled as safe to test, the CI workflows
will start executing and we'll be able to make sure everything is working as expected.

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[gitar-bot]

Code Review ✅ Approved 1 resolved / 1 findings

Introduces support for the Reverse Metadata Agent pipeline type by adding it to the CLI dispatch map. The previously identified missing method in RUN_PATH_METHODS has been resolved.

✅ 1 resolved

✅ Bug: REVERSE_METADATA missing from CLI dispatch map (RUN_PATH_METHODS)

📄 ingestion/src/metadata/cmd.py:56 📄 ingestion/src/metadata/cmd.py:60-69 📄 ingestion/src/metadata/cmd.py:169-174 📄 ingestion/src/metadata/cmd.py:264-265
The REVERSE_METADATA command is registered in the enum (line 56) and the argument parser (lines 169-174), but it is not added to the RUN_PATH_METHODS dictionary (lines 60-69) that dispatches commands to handler functions. When a user runs metadata reverse_metadata -c config.yaml, the command will be parsed but silently do nothing because the dispatch logic at line 264 checks if metadata_workflow in RUN_PATH_METHODS and skips execution when the key is missing.

For comparison, AUTO_CLASSIFICATION has a corresponding entry mapping to run_classification.

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[github-actions]

Hi there 👋 Thanks for your contribution!

The OpenMetadata team will review the PR shortly! Once it has been labeled as safe to test, the CI workflows
will start executing and we'll be able to make sure everything is working as expected.

Let us know if you need any help!