fix: correct Cargo.toml after merge conflict resolution

The release-merge conflict resolver kept the entire release Cargo.toml
instead of only the version field. This restores the new features
(http, database, cache, moka dep, reqwest pin) from main while
keeping the release version number.

Author: Derek

Cargo.toml

@@ -20,10 +20,9 @@ categories = ["development-tools"]
 exclude = [".claude/", ".github/", "ci/", "ai/", "docs/", "examples/", "benches/", "scripts/"]
 
 [features]
-default = ["config", "logger", "metrics", "env", "runtime"]
+default = ["config", "logger", "metrics", "runtime"]
 
 # Core features
-env = []
 runtime = ["dirs"]
 config = ["figment", "dotenvy", "serde_yaml_ng", "serde_json", "toml", "dirs", "tracing"]
 logger = ["tracing", "tracing-subscriber", "owo-colors", "serde_json", "tracing-throttle"]
@@ -42,13 +41,13 @@ directory-config = ["serde_yaml_ng", "tokio", "tracing", "fs4"]
 directory-config-git = ["directory-config", "git2"]
 
 # Extended features (P2)
-http = ["reqwest", "reqwest-middleware", "reqwest-retry"]
+http = ["reqwest", "reqwest-middleware", "reqwest-retry", "serde_json"]
 http-server = ["axum", "tower", "tower-http", "tokio"]
 spool = ["yaque", "zstd"]
 tiered-sink = ["yaque", "zstd", "lz4_flex", "snap", "tokio", "tower-resilience", "libc"]
 resilience = ["tower-resilience", "tower"]
-database = []
-cache = []
+database = ["serde_json"]
+cache = ["moka", "serde_json"]
 
 # Cgroup-aware memory backpressure (OOM prevention)
 memory = ["sysinfo", "tracing"]
@@ -101,7 +100,7 @@ secrets-aws = ["secrets", "aws-config", "aws-sdk-secretsmanager"]
 secrets-all = ["secrets-vault", "secrets-aws"]
 
 # Full feature set
-full = ["config", "config-reload", "logger", "metrics", "metrics-dfe", "otel", "otel-metrics", "env", "runtime", "http", "http-server", "spool", "tiered-sink", "resilience", "database", "cache", "transport-all", "transport-grpc-vector-compat", "secrets-all", "directory-config", "directory-config-git", "deployment", "version-check", "scaling", "memory", "cli", "io", "dlq", "dlq-kafka", "output-file", "expression"]
+full = ["config", "config-reload", "logger", "metrics", "metrics-dfe", "otel", "otel-metrics", "runtime", "http", "http-server", "spool", "tiered-sink", "resilience", "database", "cache", "transport-all", "transport-grpc-vector-compat", "secrets-all", "directory-config", "directory-config-git", "deployment", "version-check", "scaling", "memory", "cli", "io", "dlq", "dlq-kafka", "output-file", "expression"]
 
 [dependencies]
 # Serialisation (always needed)
@@ -158,10 +157,14 @@ sysinfo = { version = ">=0.38.0, <0.39", optional = true }
 # Async runtime (for metrics server, http-server)
 tokio = { version = ">=1.50.0, <2", features = ["rt-multi-thread", "net", "sync", "time", "macros", "signal", "fs"], optional = true }
 
-# HTTP client (P2)
-reqwest = { version = ">=0.12, <0.14", features = ["json", "blocking"], optional = true }
-reqwest-middleware = { version = ">=0.5, <0.6", optional = true }
-reqwest-retry = { version = ">=0.7, <0.10", optional = true }
+# HTTP client — pinned to reqwest 0.12 until vaultrs and opentelemetry-otlp
+# support 0.13. reqwest-middleware 0.4 and reqwest-retry 0.7 target 0.12.
+reqwest = { version = ">=0.12, <0.13", features = ["json"], optional = true }
+reqwest-middleware = { version = ">=0.4, <0.5", optional = true }
+reqwest-retry = { version = ">=0.7, <0.8", optional = true }
+
+# In-memory cache (TinyLFU, async, concurrent)
+moka = { version = ">=0.12, <0.13", features = ["future"], optional = true }
 
 # HTTP server (axum)
 axum = { version = ">=0.8.8, <0.9", optional = true }
@@ -200,7 +203,7 @@ yaque = { version = ">=0.6.6, <0.7", optional = true }
 zstd = { version = ">=0.13.3, <0.14", optional = true }
 
 # TieredSink compression codecs
-lz4_flex = { version = ">=0.11, <0.13", optional = true }
+lz4_flex = { version = ">=0.11, <0.14", optional = true }
 snap = { version = ">=1.1.1, <2", optional = true }
 
 # Async trait (for tiered-sink Sink trait)
@@ -214,7 +217,7 @@ parking_lot = { version = ">=0.12.3, <0.13", optional = true }
 base64 = { version = ">=0.22, <0.23", optional = true }
 
 # Vault/OpenBao (for secrets-vault)
-vaultrs = { version = ">=0.7, <0.8", optional = true }
+vaultrs = { version = ">=0.7, <0.9", optional = true }
 
 # AWS (for secrets-aws)
 # NOTE: aws-config and aws-sdk-* transitively pull in aws-lc-sys, which compiles