dbeaver/pro#10340 Expand key hierarchy folders

[yagudin10]

Closes dbeaver/pro#10340

Summary

• expose key-value capability in database object features
• allow key-value entities with navigator children to expand
• preserve existing hidden contents behavior for relational and document entities

Verification

• built @cloudbeaver/core-navigation-tree
• built @cloudbeaver/plugin-navigation-tree
• ran ESLint on changed frontend files (no errors; existing hook warnings remain)

Companion model metadata PR: https://github.com/dbeaver/dbeaver-ee/pull/4849

This PR was generated with AI assistance (OpenAI GPT-5.6).

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 0 complexity

Metric	Results
Complexity	0

View in Codacy

_{NEW Get contextual insights on your PRs based on Codacy's metrics, along with PR and Jira context, without leaving GitHub. Enable AI reviewer
TIP This summary will be updated as you push new changes.}

[Copilot]

🟢 Approval recommended

No unresolved issues were identified, and all reviewed changes are approval-ready.

Pull request overview

Expands navigation key hierarchy folders by adding key-value capability metadata and frontend expansion support while preserving existing hidden-content behavior.

Changes:

• Adds the keyValue feature across backend and frontend models.
• Allows key-value entities with children to expand.
• Documents the feature in GraphQL.

File summaries

File	Description
webapp/packages/plugin-navigation-tree/src/NavigationTree/ElementsTree/NavigationTreeNode/useNavigationNode.ts	Allows key-value entities with children to expand.
webapp/packages/core-navigation-tree/src/NodesManager/EObjectFeature.ts	Defines the frontend keyValue feature.
server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/service/navigator/WebDatabaseObjectInfo.java	Exposes backend key-value capability metadata.
server/bundles/io.cloudbeaver.server/schema/service.navigator.graphqls	Documents the new feature.

Review details

• Files reviewed: 4/4 changed files
• Comments generated: 0
• Review effort level: Lite

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.