fix(ms-ai-architect): Foundry URL-navnerom-migrering (ai-foundry → foundry/foundry-classic, 141 filer)

Task #5 del 1/3 (URL-migrering). Verifiseringen motbeviste STATE.md-premisset om ren prefix-swap: rebrand er per-URL, ikke mekanisk. En blind sed ai-foundry→foundry ville lagd 56 nye 404-er (classic-stiene finnes ikke under nytt foundry/-prefiks — bekreftet empirisk).

Metode: resolverte alle 237 unike KB-URLer mot live redirects (curl -L), bygde full-URL→full-URL-mapping fra faktisk url_effective. Bevarer locale-form, query (?view=) og #fragment per lenke.

- 231 navnerom-erstatninger over 141 filer (408 forekomster):
  - 161 → azure/foundry/ (98 ren prefix-swap + 10 sti-reorg + reorg-tilfeller)
  - 69 → azure/foundry-classic/ (eldre hub-spor: assistants, hub-DR, on-your-data; faktisk redirect-mål per operatorvalg)
  - 1 → azure/foundry-local/

- 2 døde lenker (404) fikset til verifiserte mål:
  - agent-service → azure/foundry/agents/overview
  - concepts/evaluation-evaluators/ → azure/foundry/how-to/evaluate-generative-ai-app

- 5 path-/display-referanser (uten https://, i backticks/lenketekst) rettet manuelt.

- 6 slug-baserte ai-foundry-treff urørt (scope-grense): managed-grafana-dashboard, security-baseline, power-platform prompt-builder, architecture baseline-chat (sistnevnte slug-rebrand i annet navnerom — mulig fremtidig funn).

- Parkert til task #5 del 2/3: Norway East GPT-5-datasuverenitet-fiks + modellkatalog-utvidelse (5.3/5.4/5.5, gpt-oss, sora-2).

Verifisert: 0 gjenværende azure/ai-foundry/-navnerom i skills/. validate-plugin.sh 219 PASS. test-kb-integrity.sh 117/117 passed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Claude-Session: https://claude.ai/code/session_01REiKFhP4w6xGXXqWKpPCJJ

skills/ms-ai-engineering/references/rag-architecture/rag-cost-optimization.md

@@ -501,15 +501,15 @@ Metrics:
 - [Vector compression best practices](https://techcommunity.microsoft.com/blog/azure-ai-services-blog/azure-ai-search-cut-vector-costs-up-to-92-5-with-new-compression-techniques/4404866) — *Verified: Compression techniques (92.5% reduction)*
 
 **Azure OpenAI Cost Management:**
-- [Plan and manage costs for Azure OpenAI](https://learn.microsoft.com/en-us/azure/ai-foundry/openai/how-to/manage-costs) — *Verified: Token-based billing, fine-tuning costs*
-- [Azure OpenAI Batch API](https://learn.microsoft.com/en-us/azure/ai-foundry/openai/how-to/batch) — *Verified: 50% cost reduction for batch workloads*
-- [Fine-tuning cost management](https://learn.microsoft.com/en-us/azure/ai-foundry/openai/how-to/fine-tuning-cost-management) — *Verified: Hosting + inference + training costs*
+- [Plan and manage costs for Azure OpenAI](https://learn.microsoft.com/en-us/azure/foundry/concepts/manage-costs) — *Verified: Token-based billing, fine-tuning costs*
+- [Azure OpenAI Batch API](https://learn.microsoft.com/en-us/azure/foundry/openai/how-to/batch) — *Verified: 50% cost reduction for batch workloads*
+- [Fine-tuning cost management](https://learn.microsoft.com/en-us/azure/foundry/openai/how-to/fine-tuning-cost-management) — *Verified: Hosting + inference + training costs*
 
 **RAG Architecture & Optimization:**
 - [RAG design and evaluation guide](https://learn.microsoft.com/en-us/azure/architecture/ai-ml/guide/rag/rag-solution-design-and-evaluation-guide) — *Verified: End-to-end RAG considerations*
 - [RAG chunking economics](https://learn.microsoft.com/en-us/azure/architecture/ai-ml/guide/rag/rag-chunking-phase#understand-chunking-economics) — *Verified: Chunking cost optimization*
 - [RAG embedding economics](https://learn.microsoft.com/en-us/azure/architecture/ai-ml/guide/rag/rag-generate-embeddings#understand-embedding-economics) — *Verified: Embedding model selection trade-offs*
-- [Retrieval cost and latency considerations](https://learn.microsoft.com/en-us/azure/ai-foundry/concepts/retrieval-augmented-generation#cost-and-latency-considerations) — *Verified: Query cost analysis*
+- [Retrieval cost and latency considerations](https://learn.microsoft.com/en-us/azure/foundry/concepts/retrieval-augmented-generation#cost-and-latency-considerations) — *Verified: Query cost analysis*
 
 **Cloud Adoption Framework:**
 - [Manage AI costs](https://learn.microsoft.com/en-us/azure/cloud-adoption-framework/scenarios/ai/manage#manage-ai-costs) — *Verified: Enterprise cost governance*