Extend organization search for private packages

[nipunayf]

Purpose

This PR updates the search command by adding the filterByCurrentOrg query parameter, which restricts results to the user’s organization on Central. The implementation has also been extended to include searches for the user’s private packages.

Addresses wso2/product-ballerina-integrator#977

Remarks

• Private organization search is not supported for functions and types, since search-symbols does not currently work for them (see Symbols are not displayed for private organizations ballerina-central#284).
• As a future improvement, the search API should handle diagnostics related to the Central token, such as detecting when it has expired.

[Copilot]

Pull Request Overview

This PR extends the search functionality to support filtering by current organization and searching within private packages in Ballerina Central. The implementation introduces a new filterByCurrentOrg query parameter to restrict search results to the user's organization and adds support for authenticated access to search private packages.

Key changes:

• Added filterByCurrentOrg parameter to enable organization-specific search filtering
• Implemented searchCurrentOrganization method across search command classes
• Added authentication support for accessing private packages via Central API

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
SearchCommand.java	Added filterByCurrentOrg parameter and searchCurrentOrganization method infrastructure
TypeSearchCommand.java	Refactored organization search logic to use new searchCurrentOrganization method
FunctionSearchCommand.java	Updated function search to support organization filtering with new architecture
ConnectorSearchCommand.java	Modified connector search to handle organization filtering and private package access
RestClient.java	Added authentication support and hasAuthorizedAccess method for private package access
RemoteCentral.java	Implemented hasAuthorizedAccess interface method
CentralAPI.java	Added hasAuthorizedAccess method to the interface

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