refactor: move chardet and pypdf dependencies to vector IO provider registries

Moves chardet and pypdf from main dependencies to provider-specific pip_packages
for all 12 vector IO providers that support file processing (Api.files).

Updated providers:
- inline::meta-reference, inline::faiss, inline::sqlite-vec, inline::sqlite_vec
- remote::chromadb, inline::chromadb, remote::pgvector, remote::weaviate
- inline::qdrant, remote::qdrant, remote::milvus, inline::milvus

uv.lock

@@ -1768,7 +1768,6 @@ dependencies = [
     { name = "aiohttp" },
     { name = "aiosqlite" },
     { name = "asyncpg" },
-    { name = "chardet" },
     { name = "fastapi" },
     { name = "fire" },
     { name = "h11" },
@@ -1783,7 +1782,6 @@ dependencies = [
     { name = "pillow" },
     { name = "prompt-toolkit" },
     { name = "pydantic" },
-    { name = "pypdf" },
     { name = "python-dotenv" },
     { name = "python-jose", extra = ["cryptography"] },
     { name = "python-multipart" },
@@ -1893,7 +1891,6 @@ requires-dist = [
     { name = "aiohttp" },
     { name = "aiosqlite", specifier = ">=0.21.0" },
     { name = "asyncpg" },
-    { name = "chardet" },
     { name = "fastapi", specifier = ">=0.115.0,<1.0" },
     { name = "fire" },
     { name = "h11", specifier = ">=0.16.0" },
@@ -1910,7 +1907,6 @@ requires-dist = [
     { name = "pillow" },
     { name = "prompt-toolkit" },
     { name = "pydantic", specifier = ">=2.11.9" },
-    { name = "pypdf" },
     { name = "python-dotenv" },
     { name = "python-jose", extras = ["cryptography"] },
     { name = "python-multipart", specifier = ">=0.0.20" },