* fix: sync replica entries before ec.encode and volume.tier.move (#7797)
This addresses the data inconsistency risk in multi-replica volumes.
When ec.encode or volume.tier.move operates on a multi-replica volume:
1. Find the replica with the highest file count (the 'best' one)
2. Copy missing entries from other replicas INTO this best replica
3. Use this union replica for the destructive operation
This ensures no data is lost due to replica inconsistency before
EC encoding or tier moving.
Added:
- command_volume_replica_check.go: Core sync and select logic
- command_volume_replica_check_test.go: Test coverage
Modified:
- command_ec_encode.go: Call syncAndSelectBestReplica before encoding
- command_volume_tier_move.go: Call syncAndSelectBestReplica before moving
Fixes#7797
* test: add integration test for replicated volume sync during ec.encode
* test: improve retry logic for replicated volume integration test
* fix: resolve JWT issue in integration tests by using empty security.toml
* address review comments: add readNeedleMeta, parallelize status fetch, fix collection param, fix test issues
* test: use collection parameter consistently in replica sync test
* fix: convert weed binary path to absolute to work with changed working directory
* fix: remove skip behavior, keep tests failing on missing binary
* fix: always check recency for each needle, add divergent replica test
