fix: use rust_shared_library for WASM component builds

Replace rust_library with rust_shared_library to properly generate
cdylib crates for WebAssembly components.

Changes:
- Switch from rust_library to rust_shared_library in rust_wasm_component
- Remove unsupported crate_type attribute
- Update platforms dependency to 0.0.11 to match resolved version
- Update documentation references

The rust_shared_library rule automatically creates cdylib crates which
are required for WebAssembly component generation, resolving build
errors in CI environments.

Author: Rules WASM Component

MODULE.bazel

@@ -9,7 +9,7 @@ module(
 # Dependencies for WebAssembly tooling
 bazel_dep(name = "rules_rust", version = "0.46.0")
 bazel_dep(name = "bazel_skylib", version = "1.7.1")
-bazel_dep(name = "platforms", version = "0.0.10")
+bazel_dep(name = "platforms", version = "0.0.11")
 
 # Development dependencies
 bazel_dep(name = "buildifier_prebuilt", version = "6.4.0", dev_dependency = True)

rust/rust_wasm_component.bzl

@@ -1,6 +1,6 @@
 """Rust WASM component rule implementation"""
 
-load("@rules_rust//rust:defs.bzl", "rust_library")
+load("@rules_rust//rust:defs.bzl", "rust_shared_library")
 load("//providers:providers.bzl", "WasmComponentInfo", "WitInfo")
 load("//common:common.bzl", "WASM_TARGET_TRIPLE")
 
@@ -109,7 +109,7 @@ def rust_wasm_component(
     """
     Builds a Rust WebAssembly component.
     
-    This macro combines rust_library with WASM component conversion.
+    This macro combines rust_shared_library with WASM component conversion.
     
     Args:
         name: Target name
@@ -121,7 +121,7 @@ def rust_wasm_component(
         rustc_flags: Additional rustc flags
         profiles: List of build profiles to create ["debug", "release", "custom"]
         visibility: Target visibility
-        **kwargs: Additional arguments passed to rust_library
+        **kwargs: Additional arguments passed to rust_shared_library
     
     Example:
         rust_wasm_component(
@@ -169,11 +169,10 @@ def rust_wasm_component(
             "--target=" + WASM_TARGET_TRIPLE,
         ]
 
-        rust_library(
+        rust_shared_library(
             name = rust_library_name,
             srcs = srcs,
             deps = deps,
-            crate_type = "cdylib",
             edition = "2021",
             crate_features = crate_features,
             rustc_flags = profile_rustc_flags,