refactor(s3): consolidate semantic boundaries and remove s3-common (#3012)

* refactor(common): introduce rustfs-data-usage core crate

* refactor(concurrency): migrate workers crate into concurrency

* refactor(crypto): migrate appauth token APIs into crypto

* fix docs urls

* remove unused crate

* refactor(data-usage): switch consumers to rustfs-data-usage

* chore(fmt): apply cargo fmt and lockfile sync

* refactor(common): remove data_usage compatibility re-export

* refactor(capacity): move capacity_scope to object-capacity

* refactor(io-metrics): relocate internode metrics from common

* refactor(common): decouple scanner report from madmin

* chore(fmt): normalize import ordering after pre-commit

* refactor(s3): split s3 types and ops crates

* refactor(s3): centralize event version and safe parsing

* refactor(s3): add op-event compatibility guardrails

* refactor(s3): add runtime op-event mismatch observability

* refactor(s3): extract delete event mapping helper

* refactor(s3): extract put event mapping helper

* refactor(s3): consolidate remaining event semantic helpers

* refactor(s3): add op-event coverage checks and observability alerts

* refactor(s3-ops): consolidate op-event semantic mapping

* refactor(scanner): remove last_minute wrapper module

* refactor(scanner): consolidate duplicated data usage models

Cargo.toml

@@ -15,10 +15,10 @@
 [workspace]
 members = [
     "rustfs", # Core file system implementation
-    "crates/appauth", # Application authentication and authorization
     "crates/audit", # Audit target management system with multi-target fan-out
     "crates/checksums", # client checksums
     "crates/common", # Shared utilities and data structures
+    "crates/data-usage", # Shared data usage models and algorithms
     "crates/config", # Configuration management
     "crates/credentials", # Credential management system
     "crates/crypto", # Cryptography and security features
@@ -39,7 +39,8 @@ members = [
     "crates/protos", # Protocol buffer definitions
     "crates/rio", # Rust I/O utilities and abstractions
     "crates/concurrency", # Concurrency management for RustFS - timeout, locking, backpressure, and I/O scheduling
-    "crates/s3-common", # Common utilities and data structures for S3 compatibility
+    "crates/s3-types", # S3 event type definitions
+    "crates/s3-ops", # S3 operation definitions and mapping
     "crates/s3select-api", # S3 Select API interface
     "crates/s3select-query", # S3 Select query engine
     "crates/scanner", # Scanner for data integrity checks and health monitoring
@@ -47,7 +48,6 @@ members = [
     "crates/targets", # Target-specific configurations and utilities
     "crates/trusted-proxies", # Trusted proxies management
     "crates/utils", # Utility functions and helpers
-    "crates/workers", # Worker thread pools and task scheduling
     "crates/io-metrics", # Zero-copy metrics collection for performance analysis
     "crates/io-core", # Zero-copy core reader and writer implementations
     "crates/zip", # ZIP file handling and compression
@@ -78,10 +78,10 @@ redundant_clone = "warn"
 # RustFS Internal Crates
 rustfs = { path = "./rustfs", version = "1.0.0-beta.3" }
 rustfs-heal = { path = "crates/heal", version = "1.0.0-beta.3" }
-rustfs-appauth = { path = "crates/appauth", version = "1.0.0-beta.3" }
 rustfs-audit = { path = "crates/audit", version = "1.0.0-beta.3" }
 rustfs-checksums = { path = "crates/checksums", version = "1.0.0-beta.3" }
 rustfs-common = { path = "crates/common", version = "1.0.0-beta.3" }
+rustfs-data-usage = { path = "crates/data-usage", version = "1.0.0-beta.3" }
 rustfs-config = { path = "./crates/config", version = "1.0.0-beta.3" }
 rustfs-concurrency = { path = "./crates/concurrency", version = "1.0.0-beta.3" }
 rustfs-credentials = { path = "crates/credentials", version = "1.0.0-beta.3" }
@@ -102,7 +102,8 @@ rustfs-policy = { path = "crates/policy", version = "1.0.0-beta.3" }
 rustfs-protos = { path = "crates/protos", version = "1.0.0-beta.3" }
 rustfs-protocols = { path = "crates/protocols", version = "1.0.0-beta.3" }
 rustfs-rio = { path = "crates/rio", version = "1.0.0-beta.3" }
-rustfs-s3-common = { path = "crates/s3-common", version = "1.0.0-beta.3" }
+rustfs-s3-types = { path = "crates/s3-types", version = "1.0.0-beta.3" }
+rustfs-s3-ops = { path = "crates/s3-ops", version = "1.0.0-beta.3" }
 rustfs-s3select-api = { path = "crates/s3select-api", version = "1.0.0-beta.3" }
 rustfs-s3select-query = { path = "crates/s3select-query", version = "1.0.0-beta.3" }
 rustfs-scanner = { path = "crates/scanner", version = "1.0.0-beta.3" }
@@ -110,7 +111,6 @@ rustfs-signer = { path = "crates/signer", version = "1.0.0-beta.3" }
 rustfs-trusted-proxies = { path = "crates/trusted-proxies", version = "1.0.0-beta.3" }
 rustfs-targets = { path = "crates/targets", version = "1.0.0-beta.3" }
 rustfs-utils = { path = "crates/utils", version = "1.0.0-beta.3" }
-rustfs-workers = { path = "crates/workers", version = "1.0.0-beta.3" }
 rustfs-zip = { path = "./crates/zip", version = "1.0.0-beta.3" }
 
 # Async Runtime and Networking
@@ -202,7 +202,6 @@ aws-credential-types = { version = "1.2.14" }
 aws-sdk-s3 = { version = "1.132.0", default-features = false, features = ["sigv4a", "default-https-client", "rt-tokio"] }
 aws-smithy-http-client = { version = "1.1.12", default-features = false, features = ["default-client", "rustls-aws-lc"] }
 aws-smithy-types = { version = "1.4.7" }
-backtrace = "0.3.76"
 base64 = "0.22.1"
 base64-simd = "0.8.0"
 brotli = "8.0.2"