refactor: move last cache to influxdb3_cache crate (influxdata#25620)

Moved all of the last cache implementation into the `influxdb3_cache`
crate. This also splits out the implementation into three modules:
- `cache.rs`: the core cache implementation
- `provider.rs`: the cache provider used by the database to hold multiple
  caches.
- `table_function.rs`: same as before, holds the DataFusion impls

Tests were preserved and moved to `mod.rs`, however, they were updated to
not rely on the WriteBuffer implementation, and instead use the types in
the `influxdb3_cache::last_cache` module directly. This simplified the
test code, while not changing any of the test assertions at all.

influxdb3/src/commands/serve.rs

@@ -8,7 +8,10 @@ use clap_blocks::{
     tokio::TokioDatafusionConfig,
 };
 use datafusion_util::config::register_iox_object_store;
-use influxdb3_cache::meta_cache::MetaCacheProvider;
+use influxdb3_cache::{
+    last_cache::{self, LastCacheProvider},
+    meta_cache::MetaCacheProvider,
+};
 use influxdb3_process::{
     build_malloc_conf, setup_metric_registry, INFLUXDB3_GIT_HASH, INFLUXDB3_VERSION, PROCESS_UUID,
 };
@@ -22,7 +25,6 @@ use influxdb3_sys_events::SysEventStore;
 use influxdb3_telemetry::store::TelemetryStore;
 use influxdb3_wal::{Gen1Duration, WalConfig};
 use influxdb3_write::{
-    last_cache::LastCacheProvider,
     parquet_cache::create_cached_obj_store_and_oracle,
     persister::Persister,
     write_buffer::{persisted_files::PersistedFiles, WriteBufferImpl, WriteBufferImplArgs},
@@ -80,7 +82,7 @@ pub enum Error {
     InitializePersistedCatalog(#[source] influxdb3_write::persister::Error),
 
     #[error("failed to initialize last cache: {0}")]
-    InitializeLastCache(#[source] influxdb3_write::last_cache::Error),
+    InitializeLastCache(#[source] last_cache::Error),
 
     #[error("failed to initialize meta cache: {0:#}")]
     InitializeMetaCache(#[source] influxdb3_cache::meta_cache::ProviderError),

influxdb3_cache/Cargo.toml

@@ -8,6 +8,7 @@ license.workspace = true
 [dependencies]
 # Core Crates
 iox_time.workspace = true
+observability_deps.workspace = true
 schema.workspace = true
 
 # Local deps
@@ -27,8 +28,18 @@ thiserror.workspace = true
 tokio.workspace = true
 
 [dev-dependencies]
+# core deps
+arrow_util.workspace = true
+data_types.workspace = true
+
 # Local deps
 influxdb3_write = { path = "../influxdb3_write" }
 
+# crates.io deps
+bimap.workspace = true
+insta.workspace = true
+object_store.workspace = true
+test-log.workspace = true
+
 [lints]
 workspace = true