Add missing local.settings.json to all MCP manifest template repos

[paulyuk]

Summary

Per review feedback from @manuvarma-MSFT on PR #1753, many AZD sample repos in the MCP server manifest are missing local.settings.json files needed for local development. Every template in the manifest should ship with a local.settings.json containing either emulator values (Azurite) or identity-based connection placeholders.

Approach

• Emulator-only (timer, durable, blob-eventgrid, AI): AzureWebJobsStorage: UseDevelopmentStorage=true + any extra bindings
• Identity-based (eventhub-vnet): Placeholder __fullyQualifiedNamespace requiring azd provision first
• Blob EventGrid special: Storage runs locally via Azurite; Event Grid events simulated via VS Code

PRs Created (16 total)

Timer Templates (6 repos)

Repo	PR	Status
functions-quickstart-dotnet-azd-timer	#15	Open
functions-quickstart-dotnet-azd-tf	#6	Open
functions-quickstart-java-azd-timer	#1	Open
functions-quickstart-javascript-azd-timer	#1	Open
functions-quickstart-typescript-azd-timer	#5	Open
functions-quickstart-powershell-azd-timer	#1	Open

Blob EventGrid Templates (2 repos)

Repo	PR	Status
functions-quickstart-powershell-azd-eventgrid-blob	#3	Open
functions-quickstart-python-azd-eventgrid-blob	#4	Open

Durable Functions Templates (2 repos)

Repo	PR	Status
Durable-Functions-Order-Processing	#6	Open
durable-functions-order-processing-python	#7	Open

AI/OpenAI Templates (5 repos)

Repo	PR	Status
function-javascript-ai-openai-chatgpt	#24	Open
function-python-ai-openai-chatgpt	#13	Open
function-python-ai-langchain	#14	Open
function-csharp-ai-textsummarize	#21	Open
function-python-ai-textsummarize	#13	Open

Identity-based Connection Templates (1 repo)

Repo	PR	Status
function-eventhub-vnet	#16	Open

Not in scope (already handled)

• 12 repos auto-generate local.settings.json via azd provision postprovision scripts (e.g., Event Hub, Cosmos, SQL, OpenAI chat/completion templates)
• 4 repos already have local.settings.json committed (e.g., C#/Java/JS/TS blob-eventgrid)
• 4 IaC-only templates (no function code)

Related

• PR Clean up template manifest: curate, fill gaps, sort #1753 — MCP server manifest curation
• Feedback from @manuvarma-MSFT on template local dev experience