* docs(volume_server): add integration test development plan * test(volume_server): add integration harness and profile matrix * test(volume_server/http): add admin and options integration coverage * test(volume_server/grpc): add state and status integration coverage * test(volume_server): auto-build weed binary and harden cluster startup * test(volume_server/http): add upload read range head delete coverage * test(volume_server/grpc): expand admin lifecycle and state coverage * docs(volume_server): update progress tracker for implemented tests * test(volume_server/http): cover if-none-match and invalid-range branches * test(volume_server/grpc): add batch delete integration coverage * docs(volume_server): log latest HTTP and gRPC test coverage * ci(volume_server): run volume server integration tests in github actions * test(volume_server/grpc): add needle status configure ping and leave coverage * docs(volume_server): record additional grpc coverage progress * test(volume_server/grpc): add vacuum integration coverage * docs(volume_server): record vacuum test coverage progress * test(volume_server/grpc): add read and write needle blob error-path coverage * docs(volume_server): record data rw grpc coverage progress * test(volume_server/http): add jwt auth integration coverage * test(volume_server/grpc): add sync copy and stream error-path coverage * docs(volume_server): record jwt and sync/copy test coverage * test(volume_server/grpc): add scrub and query integration coverage * test(volume_server/grpc): add volume tail sender and receiver coverage * docs(volume_server): record scrub query and tail test progress * test(volume_server/grpc): add readonly writable and collection lifecycle coverage * test(volume_server/http): add public-port cors and method parity coverage * test(volume_server/grpc): add blob meta and read-all success path coverage * test(volume_server/grpc): expand scrub and query variation coverage * test(volume_server/grpc): add tiering and remote fetch error-path coverage * test(volume_server/http): add unchanged write and delete edge-case coverage * test(volume_server/grpc): add ping unknown and unreachable target coverage * test(volume_server/grpc): add volume delete only-empty variation coverage * test(volume_server/http): add jwt fid-mismatch auth coverage * test(volume_server/grpc): add scrub ec auto-select empty coverage * test(volume_server/grpc): stabilize ping timestamp assertion * docs(volume_server): update integration coverage progress log * test(volume_server/grpc): add tier remote backend and config variation coverage * docs(volume_server): record tier remote variation progress * test(volume_server/grpc): add incremental copy and receive-file protocol coverage * test(volume_server/http): add read path shape and if-modified-since coverage * test(volume_server/grpc): add copy-file compaction and receive-file success coverage * test(volume_server/http): add passthrough headers and static asset coverage * test(volume_server/grpc): add ping filer unreachable coverage * docs(volume_server): record copy receive and http variant progress * test(volume_server/grpc): add erasure coding maintenance and missing-path coverage * docs(volume_server): record initial erasure coding rpc coverage * test(volume_server/http): add multi-range multipart response coverage * docs(volume_server): record multi-range http coverage progress * test(volume_server/grpc): add query empty-stripe no-match coverage * docs(volume_server): record query no-match stream behavior coverage * test(volume_server/http): add upload throttling timeout and replicate bypass coverage * docs(volume_server): record upload throttling coverage progress * test(volume_server/http): add download throttling timeout coverage * docs(volume_server): record download throttling coverage progress * test(volume_server/http): add jwt wrong-cookie fid mismatch coverage * docs(volume_server): record jwt wrong-cookie mismatch coverage * test(volume_server/http): add jwt expired-token rejection coverage * docs(volume_server): record jwt expired-token coverage * test(volume_server/http): add jwt query and cookie transport coverage * docs(volume_server): record jwt token transport coverage * test(volume_server/http): add jwt token-source precedence coverage * docs(volume_server): record jwt token-source precedence coverage * test(volume_server/http): add jwt header-over-cookie precedence coverage * docs(volume_server): record jwt header cookie precedence coverage * test(volume_server/http): add jwt query-over-cookie precedence coverage * docs(volume_server): record jwt query cookie precedence coverage * test(volume_server/grpc): add setstate version mismatch and nil-state coverage * docs(volume_server): record setstate validation coverage * test(volume_server/grpc): add readonly persist-true lifecycle coverage * docs(volume_server): record readonly persist variation coverage * test(volume_server/http): add options origin cors header coverage * docs(volume_server): record options origin cors coverage * test(volume_server/http): add trace unsupported-method parity coverage * docs(volume_server): record trace method parity coverage * test(volume_server/grpc): add batch delete cookie-check variation coverage * docs(volume_server): record batch delete cookie-check coverage * test(volume_server/grpc): add admin lifecycle missing and maintenance variants * docs(volume_server): record admin lifecycle edge-case coverage * test(volume_server/grpc): add mixed batch delete status matrix coverage * docs(volume_server): record mixed batch delete matrix coverage * test(volume_server/http): add jwt-profile ui access gating coverage * docs(volume_server): record jwt ui-gating http coverage * test(volume_server/http): add propfind unsupported-method parity coverage * docs(volume_server): record propfind method parity coverage * test(volume_server/grpc): add volume configure success and rollback-path coverage * docs(volume_server): record volume configure branch coverage * test(volume_server/grpc): add volume needle status missing-path coverage * docs(volume_server): record volume needle status error-path coverage * test(volume_server/http): add readDeleted query behavior coverage * docs(volume_server): record readDeleted http behavior coverage * test(volume_server/http): add delete ts override parity coverage * docs(volume_server): record delete ts parity coverage * test(volume_server/grpc): add invalid blob/meta offset coverage * docs(volume_server): record invalid blob/meta offset coverage * test(volume_server/grpc): add read-all mixed volume abort coverage * docs(volume_server): record read-all mixed-volume abort coverage * test(volume_server/http): assert head response body parity * docs(volume_server): record head body parity assertion * test(volume_server/grpc): assert status state and memory payload completeness * docs(volume_server): record volume server status payload coverage * test(volume_server/grpc): add batch delete chunk-manifest rejection coverage * docs(volume_server): record batch delete chunk-manifest coverage * test(volume_server/grpc): add query cookie-mismatch eof parity coverage * docs(volume_server): record query cookie-mismatch parity coverage * test(volume_server/grpc): add ping master success target coverage * docs(volume_server): record ping master success coverage * test(volume_server/http): add head if-none-match conditional parity * docs(volume_server): record head if-none-match parity coverage * test(volume_server/http): add head if-modified-since parity coverage * docs(volume_server): record head if-modified-since parity coverage * test(volume_server/http): add connect unsupported-method parity coverage * docs(volume_server): record connect method parity coverage * test(volume_server/http): assert options allow-headers cors parity * docs(volume_server): record options allow-headers coverage * test(volume_server/framework): add dual volume cluster integration harness * test(volume_server/http): add missing-local read mode proxy redirect local coverage * docs(volume_server): record read mode missing-local matrix coverage * test(volume_server/http): add download over-limit replica proxy fallback coverage * docs(volume_server): record download replica fallback coverage * test(volume_server/http): add missing-local readDeleted proxy redirect parity coverage * docs(volume_server): record missing-local readDeleted mode coverage * test(volume_server/framework): add single-volume cluster with filer harness * test(volume_server/grpc): add ping filer success target coverage * docs(volume_server): record ping filer success coverage * test(volume_server/http): add proxied-loop guard download timeout coverage * docs(volume_server): record proxied-loop download coverage * test(volume_server/http): add disabled upload and download limit coverage * docs(volume_server): record disabled throttling path coverage * test(volume_server/grpc): add idempotent volume server leave coverage * docs(volume_server): record leave idempotence coverage * test(volume_server/http): add redirect collection query preservation coverage * docs(volume_server): record redirect collection query coverage * test(volume_server/http): assert admin server headers on status and health * docs(volume_server): record admin server header coverage * test(volume_server/http): assert healthz request-id echo parity * docs(volume_server): record healthz request-id parity coverage * test(volume_server/http): add over-limit invalid-vid download branch coverage * docs(volume_server): record over-limit invalid-vid branch coverage * test(volume_server/http): add public-port static asset coverage * docs(volume_server): record public static endpoint coverage * test(volume_server/http): add public head method parity coverage * docs(volume_server): record public head parity coverage * test(volume_server/http): add throttling wait-then-proceed path coverage * docs(volume_server): record throttling wait-then-proceed coverage * test(volume_server/http): add read cookie-mismatch not-found coverage * docs(volume_server): record read cookie-mismatch coverage * test(volume_server/http): add throttling timeout-recovery coverage * docs(volume_server): record throttling timeout-recovery coverage * test(volume_server/grpc): add ec generate mount info unmount lifecycle coverage * docs(volume_server): record ec positive lifecycle coverage * test(volume_server/grpc): add ec shard read and blob delete lifecycle coverage * docs(volume_server): record ec shard read/blob delete lifecycle coverage * test(volume_server/grpc): add ec rebuild and to-volume error branch coverage * docs(volume_server): record ec rebuild and to-volume branch coverage * test(volume_server/grpc): add ec shards-to-volume success roundtrip coverage * docs(volume_server): record ec shards-to-volume success coverage * test(volume_server/grpc): add ec receive and copy-file missing-source coverage * docs(volume_server): record ec receive and copy-file coverage * test(volume_server/grpc): add ec last-shard delete cleanup coverage * docs(volume_server): record ec last-shard delete cleanup coverage * test(volume_server/grpc): add volume copy success path coverage * docs(volume_server): record volume copy success coverage * test(volume_server/grpc): add volume copy overwrite-destination coverage * docs(volume_server): record volume copy overwrite coverage * test(volume_server/http): add write error-path variant coverage * docs(volume_server): record http write error-path coverage * test(volume_server/http): add conditional header precedence coverage * docs(volume_server): record conditional header precedence coverage * test(volume_server/http): add oversized combined range guard coverage * docs(volume_server): record oversized range guard coverage * test(volume_server/http): add image resize and crop read coverage * docs(volume_server): record image transform coverage * test(volume_server/http): add chunk-manifest expansion and bypass coverage * docs(volume_server): record chunk-manifest read coverage * test(volume_server/http): add compressed read encoding matrix coverage * docs(volume_server): record compressed read matrix coverage * test(volume_server/grpc): add tail receiver source replication coverage * docs(volume_server): record tail receiver replication coverage * test(volume_server/grpc): add tail sender large-needle chunking coverage * docs(volume_server): record tail sender chunking coverage * test(volume_server/grpc): add ec-backed volume needle status coverage * docs(volume_server): record ec-backed needle status coverage * test(volume_server/grpc): add ec shard copy from peer success coverage * docs(volume_server): record ec shard copy success coverage * test(volume_server/http): add chunk-manifest delete child cleanup coverage * docs(volume_server): record chunk-manifest delete cleanup coverage * test(volume_server/http): add chunk-manifest delete failure-path coverage * docs(volume_server): record chunk-manifest delete failure coverage * test(volume_server/grpc): add ec shard copy source-unavailable coverage * docs(volume_server): record ec shard copy source-unavailable coverage * parallel