search and ai stabilization work, localization stablized.

src/__Libraries/StellaOps.Provcache/Chunking/EvidenceChunker.Reassemble.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -21,7 +22,7 @@ public sealed partial class EvidenceChunker
 
         if (orderedChunks.Count == 0)
         {
-            throw new ArgumentException("No chunks provided.", nameof(chunks));
+            throw new ArgumentException(_t("common.provcache.no_chunks_provided"), nameof(chunks));
         }
 
         // Verify Merkle root.
@@ -31,7 +32,7 @@ public sealed partial class EvidenceChunker
         if (!string.Equals(computedRoot, expectedProofRoot, StringComparison.OrdinalIgnoreCase))
         {
             throw new InvalidOperationException(
-                $"Merkle root mismatch. Expected: {expectedProofRoot}, Computed: {computedRoot}");
+                _t("common.provcache.merkle_root_mismatch", expectedProofRoot, computedRoot));
         }
 
         // Verify each chunk.
@@ -42,7 +43,7 @@ public sealed partial class EvidenceChunker
             if (!VerifyChunk(chunk))
             {
                 throw new InvalidOperationException(
-                    $"Chunk {chunk.ChunkIndex} verification failed. Expected hash: {chunk.ChunkHash}");
+                    _t("common.provcache.chunk_verification_failed", chunk.ChunkIndex, chunk.ChunkHash));
             }
         }
 

src/__Libraries/StellaOps.Provcache/Export/MinimalProofExporter.Export.cs

@@ -2,6 +2,7 @@ using Microsoft.Extensions.Logging;
 using System;
 using System.Threading;
 using System.Threading.Tasks;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -25,7 +26,7 @@ public sealed partial class MinimalProofExporter
         var cacheResult = await _provcacheService.GetAsync(veriKey, bypassCache: false, cancellationToken);
         if (cacheResult.Entry is null)
         {
-            throw new InvalidOperationException($"Cache entry not found for VeriKey: {veriKey}");
+            throw new InvalidOperationException(_t("common.provcache.cache_entry_not_found", veriKey));
         }
 
         var entry = cacheResult.Entry;
@@ -34,7 +35,7 @@ public sealed partial class MinimalProofExporter
 
         // Get the chunk manifest.
         var manifest = await _chunkRepository.GetManifestAsync(proofRoot, cancellationToken)
-            ?? throw new InvalidOperationException($"Chunk manifest not found for proof root: {proofRoot}");
+            ?? throw new InvalidOperationException(_t("common.provcache.chunk_manifest_not_found", proofRoot));
 
         // Build chunks based on density.
         var bundleChunks = await GetChunksForDensityAsync(
@@ -61,7 +62,7 @@ public sealed partial class MinimalProofExporter
         {
             if (_signer is null)
             {
-                throw new InvalidOperationException("Signing requested but no signer is configured.");
+                throw new InvalidOperationException(_t("common.provcache.signing_requested_no_signer"));
             }
 
             bundle = await SignBundleAsync(bundle, options.SigningKeyId, cancellationToken);

src/__Libraries/StellaOps.Provcache/Export/MinimalProofExporter.Import.Serialization.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -16,7 +17,7 @@ public sealed partial class MinimalProofExporter
         ArgumentNullException.ThrowIfNull(jsonBytes);
 
         var bundle = JsonSerializer.Deserialize<MinimalProofBundle>(jsonBytes, s_jsonOptions)
-            ?? throw new InvalidOperationException("Failed to deserialize bundle.");
+            ?? throw new InvalidOperationException(_t("common.provcache.bundle_deserialize_failed"));
 
         return await ImportAsync(bundle, cancellationToken);
     }
@@ -32,7 +33,7 @@ public sealed partial class MinimalProofExporter
             inputStream,
             s_jsonOptions,
             cancellationToken)
-            ?? throw new InvalidOperationException("Failed to deserialize bundle.");
+            ?? throw new InvalidOperationException(_t("common.provcache.bundle_deserialize_failed"));
 
         return await ImportAsync(bundle, cancellationToken);
     }

src/__Libraries/StellaOps.Provcache/Export/MinimalProofExporter.Signing.cs

@@ -5,6 +5,7 @@ using StellaOps.Provenance.Attestation;
 using System;
 using System.Threading;
 using System.Threading.Tasks;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -17,7 +18,7 @@ public sealed partial class MinimalProofExporter
     {
         if (_signer is null)
         {
-            throw new InvalidOperationException("Signer is not configured.");
+            throw new InvalidOperationException(_t("common.provcache.signer_not_configured"));
         }
 
         // Serialize bundle without signature for signing.

src/__Libraries/StellaOps.Provcache/LazyFetch/HttpChunkFetcher.Configuration.cs

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using System.Net.Http;
 using System.Net.Http.Headers;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -22,7 +23,7 @@ public sealed partial class HttpChunkFetcher
         var timeout = _options.Timeout;
         if (timeout <= TimeSpan.Zero || timeout == Timeout.InfiniteTimeSpan)
         {
-            throw new InvalidOperationException("Lazy fetch HTTP timeout must be a positive, non-infinite duration.");
+            throw new InvalidOperationException(_t("common.provcache.http_timeout_invalid"));
         }
 
         if (_httpClient.Timeout == Timeout.InfiniteTimeSpan || _httpClient.Timeout > timeout)

src/__Libraries/StellaOps.Provcache/LazyFetch/HttpChunkFetcher.Validation.cs

@@ -1,4 +1,5 @@
 using System;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -8,27 +9,27 @@ public sealed partial class HttpChunkFetcher
     {
         if (!baseAddress.IsAbsoluteUri)
         {
-            throw new InvalidOperationException("Lazy fetch base URL must be absolute.");
+            throw new InvalidOperationException(_t("common.provcache.fetch_url_absolute"));
         }
 
         if (!string.IsNullOrWhiteSpace(baseAddress.UserInfo))
         {
-            throw new InvalidOperationException("Lazy fetch base URL must not include user info.");
+            throw new InvalidOperationException(_t("common.provcache.fetch_url_no_userinfo"));
         }
 
         if (string.IsNullOrWhiteSpace(baseAddress.Host))
         {
-            throw new InvalidOperationException("Lazy fetch base URL must include a host.");
+            throw new InvalidOperationException(_t("common.provcache.fetch_url_host_required"));
         }
 
         if (!_allowedSchemes.Contains(baseAddress.Scheme))
         {
-            throw new InvalidOperationException($"Lazy fetch base URL scheme '{baseAddress.Scheme}' is not allowed.");
+            throw new InvalidOperationException(_t("common.provcache.fetch_url_scheme_invalid", baseAddress.Scheme));
         }
 
         if (!_allowAllHosts && !IsHostAllowed(baseAddress.Host, _allowedHosts))
         {
-            throw new InvalidOperationException($"Lazy fetch base URL host '{baseAddress.Host}' is not allowlisted.");
+            throw new InvalidOperationException(_t("common.provcache.fetch_url_host_invalid", baseAddress.Host));
         }
     }
 }

src/__Libraries/StellaOps.Provcache/LazyFetch/HttpChunkFetcher.cs

@@ -3,6 +3,7 @@ using System;
 using System.Collections.Generic;
 using System.Net.Http;
 using System.Text.Json;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -71,7 +72,7 @@ public sealed partial class HttpChunkFetcher : ILazyEvidenceFetcher, IDisposable
         };
 
         var baseAddress = _httpClient.BaseAddress
-            ?? throw new InvalidOperationException("HttpChunkFetcher requires a BaseAddress on the HTTP client.");
+            ?? throw new InvalidOperationException(_t("common.provcache.http_base_address_required"));
 
         _allowedSchemes = NormalizeSchemes(_options.AllowedSchemes);
         _allowedHosts = NormalizeHosts(_options.AllowedHosts, baseAddress.Host, out _allowAllHosts);

src/__Libraries/StellaOps.Provcache/Oci/ProvcacheOciAttestationBuilder.Subject.cs

@@ -4,6 +4,7 @@
 // ----------------------------------------------------------------------------
 using System;
 using System.Collections.Generic;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache.Oci;
 
@@ -13,22 +14,22 @@ public sealed partial class ProvcacheOciAttestationBuilder
     {
         if (string.IsNullOrWhiteSpace(request.ArtifactReference))
         {
-            throw new ArgumentException("Artifact reference is required.", nameof(request));
+            throw new ArgumentException(_t("common.provcache.artifact_reference_required"), nameof(request));
         }
 
         if (string.IsNullOrWhiteSpace(request.ArtifactDigest))
         {
-            throw new ArgumentException("Artifact digest is required.", nameof(request));
+            throw new ArgumentException(_t("common.provcache.artifact_digest_required"), nameof(request));
         }
 
         if (request.DecisionDigest is null)
         {
-            throw new ArgumentException("DecisionDigest is required.", nameof(request));
+            throw new ArgumentException(_t("common.provcache.decision_digest_required"), nameof(request));
         }
 
         if (string.IsNullOrWhiteSpace(request.DecisionDigest.VeriKey))
         {
-            throw new ArgumentException("DecisionDigest.VeriKey is required.", nameof(request));
+            throw new ArgumentException(_t("common.provcache.decision_digest_verikey_required"), nameof(request));
         }
     }
 
@@ -54,7 +55,7 @@ public sealed partial class ProvcacheOciAttestationBuilder
     {
         if (string.IsNullOrWhiteSpace(digest))
         {
-            throw new ArgumentException("Digest cannot be empty.", nameof(digest));
+            throw new ArgumentException(_t("common.provcache.digest_empty"), nameof(digest));
         }
 
         // Handle "sha256:abc123..." format.

src/__Libraries/StellaOps.Provcache/StellaOps.Provcache.csproj

@@ -29,6 +29,7 @@
     <ProjectReference Include="../StellaOps.Determinism.Abstractions/StellaOps.Determinism.Abstractions.csproj" />
     <ProjectReference Include="../../Router/__Libraries/StellaOps.Messaging/StellaOps.Messaging.csproj" />
     <ProjectReference Include="../../Provenance/StellaOps.Provenance.Attestation/StellaOps.Provenance.Attestation.csproj" />
+    <ProjectReference Include="../StellaOps.Localization/StellaOps.Localization.csproj" />
   </ItemGroup>
 
 </Project>

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.Policy.cs

@@ -1,4 +1,5 @@
 using System;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -12,7 +13,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithMergePolicyHash(string policyHash)
     {
         if (string.IsNullOrWhiteSpace(policyHash))
-            throw new ArgumentException("Policy hash cannot be null or empty.", nameof(policyHash));
+            throw new ArgumentException(_t("common.provcache.policy_hash_required"), nameof(policyHash));
 
         _mergePolicyHash = NormalizeHash(policyHash);
         return this;

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.Sbom.cs

@@ -1,4 +1,5 @@
 using System;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -13,7 +14,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithSbomHash(string sbomHash)
     {
         if (string.IsNullOrWhiteSpace(sbomHash))
-            throw new ArgumentException("SBOM hash cannot be null or empty.", nameof(sbomHash));
+            throw new ArgumentException(_t("common.provcache.sbom_hash_required"), nameof(sbomHash));
 
         _sbomHash = NormalizeHash(sbomHash);
         return this;

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.Signer.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -15,7 +16,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithSignerSetHash(string signerSetHash)
     {
         if (string.IsNullOrWhiteSpace(signerSetHash))
-            throw new ArgumentException("Signer set hash cannot be null or empty.", nameof(signerSetHash));
+            throw new ArgumentException(_t("common.provcache.signer_set_hash_required"), nameof(signerSetHash));
 
         _signerSetHash = NormalizeHash(signerSetHash);
         return this;

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.Source.cs

@@ -1,4 +1,5 @@
 using System;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -13,7 +14,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithSourceHash(string sourceHash)
     {
         if (string.IsNullOrWhiteSpace(sourceHash))
-            throw new ArgumentException("Source hash cannot be null or empty.", nameof(sourceHash));
+            throw new ArgumentException(_t("common.provcache.source_hash_required"), nameof(sourceHash));
 
         _sourceHash = NormalizeHash(sourceHash);
         return this;

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.TimeWindow.cs

@@ -1,4 +1,5 @@
 using System;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -12,7 +13,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithTimeWindow(string timeWindow)
     {
         if (string.IsNullOrWhiteSpace(timeWindow))
-            throw new ArgumentException("Time window cannot be null or empty.", nameof(timeWindow));
+            throw new ArgumentException(_t("common.provcache.time_window_required"), nameof(timeWindow));
 
         _timeWindow = timeWindow;
         return this;

src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.Vex.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using static StellaOps.Localization.T;
 
 namespace StellaOps.Provcache;
 
@@ -15,7 +16,7 @@ public sealed partial class VeriKeyBuilder
     public VeriKeyBuilder WithVexHashSet(string vexHashSetHash)
     {
         if (string.IsNullOrWhiteSpace(vexHashSetHash))
-            throw new ArgumentException("VEX hash set hash cannot be null or empty.", nameof(vexHashSetHash));
+            throw new ArgumentException(_t("common.provcache.vex_hash_required"), nameof(vexHashSetHash));
 
         _vexHashSetHash = NormalizeHash(vexHashSetHash);
         return this;