[Storage] set/get_access_policy for ContainerClient

[vincenttran-msft]

• .tsp: [Storage] get/set_access_policy TypeSpec Changes azure-rest-api-specs#38633
• Adds implementations for set_access_policy() and get_access_policy()
• Adds From impl for HashMap<String, AccessPolicy> -> SignedIdentifiers
• Fixes up BlobTags TryFrom to From for consistency, especially since fallible case was not actually fallible

SetAccessPolicy: Completely NULLED
GetAccessPolicy:

/// * date() - Date REMOVED
/// * last_modified() - Last-Modified
/// * etag() - etag
/// * access() - x-ms-blob-public-access

• Changelog entry

[github-actions]

API Change Check

APIView identified API level changes in this PR and created the following API reviews

azure_storage_blob

[Copilot]

Pull Request Overview

This PR adds support for setting and getting access policies on blob containers, allowing control over public access to container data. The implementation follows Azure Storage's access policy model using signed identifiers.

Key Changes

• Added set_access_policy() and get_access_policy() methods to BlobContainerClient
• Changed AccessPolicy date fields from OffsetDateTime to String to support custom formatting with exactly 7 decimal precision
• Changed BlobTags to HashMap<String, String> conversion from TryFrom to From (breaking change)

Reviewed Changes

Copilot reviewed 11 out of 16 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
sdk/storage/azure_storage_blob/tsp-location.yaml	Updated TypeSpec commit reference
sdk/storage/azure_storage_blob/tests/blob_container_client.rs	Added comprehensive test for access policy set/get operations
sdk/storage/azure_storage_blob/tests/blob_client.rs	Updated blob tags test to use into() instead of try_into()
sdk/storage/azure_storage_blob/src/parsers.rs	Added format_storage_datetime() helper function for RFC3339 formatting with 7 decimal places
sdk/storage/azure_storage_blob/src/models/mod.rs	Added exports for new types: AccessPolicy, SignedIdentifiers, SignedIdentifiersHeaders, and related options
sdk/storage/azure_storage_blob/src/models/extensions.rs	Changed BlobTags to HashMap conversion from TryFrom to From; added HashMap<String, AccessPolicy> to SignedIdentifiers conversion
sdk/storage/azure_storage_blob/src/generated/models/pub_models.rs	Updated generated models: AccessPolicy fields changed to String, removed BlobContainerClientSetAccessPolicyResult, added SignedIdentifiers struct
sdk/storage/azure_storage_blob/src/generated/models/models_impl.rs	Added TryFrom implementation for SignedIdentifiers to RequestContent
sdk/storage/azure_storage_blob/src/generated/models/header_traits.rs	Removed BlobContainerClientSetAccessPolicyResultHeaders trait, added SignedIdentifiersHeaders trait, updated response types
sdk/storage/azure_storage_blob/src/generated/clients/blob_container_client.rs	Updated generated client: get_access_policy() returns SignedIdentifiers, set_access_policy() returns unit type
sdk/storage/azure_storage_blob/src/clients/blob_container_client.rs	Added public wrapper methods for set_access_policy() and get_access_policy() with documentation
sdk/storage/azure_storage_blob/assets.json	Updated test assets tag
sdk/storage/azure_storage_blob/Cargo.toml	Added time workspace dependency
sdk/storage/azure_storage_blob/CHANGELOG.md	Added changelog entries for new features and breaking changes
sdk/storage/.dict.txt	Added "subsecond" to dictionary
Cargo.lock	Updated dependencies including include-file version bump and added time to azure_storage_blob