feat: regenerate API client from OpenAPI spec

[convoy-sdk-bot]

Automated regeneration via OpenAPI Generator (java/native) from docs/v3/openapi3.yaml on frain-dev/convoy main. Hand-written webhook verify (src/main/java/com/getconvoy/webhook/) is untouched by the sync script.

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Note

Medium Risk
Public method signatures for listing and batch-replaying events change, so downstream callers can fail to compile. Behavior is still generated client plumbing, not auth or data-store logic.

Overview
Regenerates the Java client so event list, batch replay, and count-affected calls can send a dedicated body query param (URL-encoded JSON payload match, ANDed with query).

batchReplayEvents, countAffectedEvents, and getEventsPaged now take an extra optional body argument after projectID and send it as a query string. query docs now describe prefix/metadata matching vs payload containment. searchPolicy on DatastoreProjectConfig gets a longer Javadoc only.

Breaking: existing positional callers of those three methods must insert body (or null).

^{Reviewed by Cursor Bugbot for commit 10d0c35. Bugbot is set up for automated code reviews on this repo. Configure here.}

[convoy-sdk-reviewer]

SDK reviewer app: approving a generated-paths-only diff on the regen branch. Auto-merge completes only after required status checks pass.