migrates foundry catalog api to v2 and removes regional download/fallback

.pipelines/v2/templates/stages-cs.yml

@@ -39,7 +39,7 @@ stages:
     steps:
     - checkout: self
       clean: true
-    - template: steps-build-cs.yml
+    - template: steps-build-cs.yml@self
       parameters:
         flNugetDir: '$(Pipeline.Workspace)/cpp-nuget'
         outputDir: '$(Build.ArtifactStagingDirectory)/cs-sdk'
@@ -132,7 +132,7 @@ stages:
     - checkout: self
       clean: true
     - template: ../../templates/fetch-test-data-from-blob.yml@self
-    - template: steps-test-cs.yml
+    - template: steps-test-cs.yml@self
       parameters:
         flNugetDir: '$(Pipeline.Workspace)/cpp-nuget'
         testDataSharedDir: '$(Build.SourcesDirectory)/test-data-shared'
@@ -193,7 +193,7 @@ stages:
     - checkout: self
       clean: true
     - template: ../../templates/fetch-test-data-from-blob.yml@self
-    - template: steps-test-cs.yml
+    - template: steps-test-cs.yml@self
       parameters:
         flNugetDir: '$(Pipeline.Workspace)/cpp-nuget'
         testDataSharedDir: '$(Build.SourcesDirectory)/test-data-shared'

sdk_v2/cpp/CMakeLists.txt

@@ -268,7 +268,6 @@ set(FOUNDRY_LOCAL_SOURCES
     src/util/file_lock.cc
     src/http/http_download.cc
     src/util/path_safety.cc
-    src/util/region_fallback.cc
     src/util/sha256.cc
     src/util/zip_extract.cc
     ${FOUNDRY_LOCAL_PLATFORM_SOURCES}

sdk_v2/cpp/src/catalog/azure_catalog_client.h

@@ -8,7 +8,6 @@
 #include "http/http_client.h"
 #include "logger.h"
 #include "model_info.h"
-#include "util/region_fallback.h"
 
 #include <functional>
 #include <optional>
@@ -18,31 +17,30 @@
 namespace fl {
 
 /// Live Azure Foundry catalog client. Queries the catalog REST API
-/// (`{base_url}/entities/crossRegion`) for the models available to the local
+/// (`asset-gallery/v1.0/models`) for the models available to the local
 /// hardware, paginating through results and converting each entry to ModelInfo.
 ///
 /// Uses one filter set per detected device, page size 50, and pagination via
-/// skip + continuationToken.
+/// skip + continuationToken. The detected region is stamped onto results so
+/// downloads can target the matching regional model registry.
 class AzureCatalogClient : public ICatalogClient {
  public:
-  /// Response-aware HTTP POST. Used for region detection, catalog fetches, and regional fallback.
+  /// Response-aware HTTP POST. Used for region detection and catalog fetches.
   using HttpPostResponseFn =
       std::function<http::HttpResponse(const std::string& url, const std::string& body)>;
 
-  /// @param base_url Catalog base URL, e.g. "https://ai.azure.com/api/centralus/ux/v1.0".
-  /// @param filter_override Foundry Local tag filter. "" means public models; "''" means a single empty value.
+  /// @param base_url Catalog endpoint. Empty means the default V2 asset-gallery endpoint.
+  /// @param filter_override Deployment-option override. Empty means `foundryLocalDevices`.
   /// @param ep_detector Reports available device and execution-provider pairs.
   /// @param logger Logger.
   /// @param http_post HTTP POST implementation. The default uses `http::HttpPostWithResponse`.
   /// @param catalog_region Catalog region. Empty or "auto" detects from Azure headers; any other value is explicit.
-  /// @param region_fallback_enabled Enables retries through nearby regions when a regional endpoint is unhealthy.
   AzureCatalogClient(const std::string& base_url,
                      const std::string& filter_override,
                      const IEpDetector& ep_detector,
                      ILogger& logger,
                      HttpPostResponseFn http_post = {},
-                     std::string catalog_region = "",
-                     bool region_fallback_enabled = true);
+                     std::string catalog_region = "");
 
   /// Fetch every catalog model entry visible to the local hardware (raw form,
   /// before conversion to ModelInfo). One filter set per device, fully paginated.
@@ -67,28 +65,20 @@ class AzureCatalogClient : public ICatalogClient {
     std::string region;
   };
 
-  /// Run all pages of one filter set. In regional mode the first page goes through region fallback and later pages are
-  /// pinned to the serving region; a retryable region-health failure fails just this filter set (others continue).
+  /// Run all pages of one filter set.
   std::optional<FetchedFilterSet> FetchFilterSet(const std::vector<CatalogFilter>& filters);
 
-  /// Fetch every device filter set, dropping the ones that failed their region-health checks.
-  /// Used for unbounded "latest only" / by-id queries.
+  /// Fetch every device filter set.
   std::vector<FetchedFilterSet> FetchAllFilterSets();
 
   std::string base_url_;
-  std::vector<std::string> model_filter_;  // foundryLocal tag values
+  std::vector<std::string> model_filter_;  // deploymentOptions filter values
   const IEpDetector& ep_detector_;
   ILogger& logger_;
   HttpPostResponseFn http_post_response_;
-  RegionFallback region_fallback_;
 
-  // Region state. region_ is the active region (empty = use base_url verbatim).
-  // When base_url matches the https://{host}/api/{region}/{suffix} template,
-  // url_prefix_/url_suffix_ let us synthesize per-region URLs.
+  // Region state used for model-registry routing after catalog discovery.
   std::string region_;
-  std::string url_prefix_;
-  std::string url_suffix_;
-  bool regional_template_ = false;
 };
 
 }  // namespace fl