fix(remote): unify unsupported operation errors and warnings (#4414)

Remote SDKs report Cloud-specific errors against self-hosted servers,
and some Python wrappers raise different exception types for the same
unsupported operation. The sync index wrapper also warns that `replace`
is ignored even though Rust forwards it to the server.

Use backend-neutral table/server diagnostics and the existing
`NotSupported` error conversions for unsupported manifest operations,
blob ranges, primary keys, optimization, and HNSW-PQ indexes. Sync
Python delegates to the async paths, so manifest operations and
`optimize()` consistently raise `NotImplementedError`. Legacy and
config-based HNSW-PQ creation share the same error and alternative-index
advice.

Remove the false replacement warning and simplify the ignored
GPU-accelerator warning. Keep the deprecated cleanup/compaction no-ops,
with backend-neutral warnings that do not assume automatic server
maintenance.

Embedding configuration forwarding and stale warning removal are now
supplied by #4408 in `main`. Retain the regression that verifies full
embedding metadata and warning-free remote creation alongside the
diagnostics tests.

Validation against the merged `main` revision `bbc4aebe` and Lance
14.0.0-beta.1:

- Rebuilt the Python extension with `uv run --extra tests --extra dev
maturin develop --extras tests,dev`; all 122 remote Python tests passed.
Root Ruff checks and formatting passed using the uv-managed environment.
- `pnpm build`, `pnpm lint`, formatting, and `pnpm run docs` passed; all
47 remote Node tests and the focused local vector-index regression
passed.
- All 583 Rust remote tests and 54 query unit tests passed, along with
`cargo check --quiet --features remote --tests --examples`, `cargo
clippy --quiet --features remote --tests --examples`, and `cargo fmt
--all`.

Fixes #4393

<!-- lance-gatekeeper-fix:v1 agent=10bafd337999f4910855c3a9b71e7dcf
generation=1 -->

---------

Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com>

nodejs/src/table.rs

@@ -836,7 +836,10 @@ impl Table {
     pub async fn uses_v2_manifest_paths(&self) -> napi::Result<bool> {
         self.inner_ref()?
             .as_native()
-            .ok_or_else(|| napi::Error::from_reason("This cannot be run on a remote table"))?
+            .ok_or_else(|| lancedb::Error::NotSupported {
+                message: "uses_v2_manifest_paths is not supported for remote tables.".into(),
+            })
+            .default_error()?
             .uses_v2_manifest_paths()
             .await
             .default_error()
@@ -846,7 +849,10 @@ impl Table {
     pub async fn migrate_manifest_paths_v2(&self) -> napi::Result<()> {
         self.inner_ref()?
             .as_native()
-            .ok_or_else(|| napi::Error::from_reason("This cannot be run on a remote table"))?
+            .ok_or_else(|| lancedb::Error::NotSupported {
+                message: "migrate_manifest_paths_v2 is not supported for remote tables.".into(),
+            })
+            .default_error()?
             .migrate_manifest_paths_v2()
             .await
             .default_error()