Live values for existing resources, and search in popup lists

[someson]

Summary

The README promises "live values from your Azure subscription — resource groups, locations, existing resources", but the form only listed what az --help marks with Values from: (locations, VM sizes, Kubernetes versions). This PR lists the user's real resources where a param names one, and makes long lists usable with search.

Changes

Existing resources as live values (internal/ui/fetch.go, model.go)

• --resource-group in every command, and --name of az group show/delete/update/wait/export, list az group list. Never group create, where the name is new.
• --name of an existing resource: show, delete, update, start, stop, scale, get-credentials, … of VMs, VMSS, AKS, ACR, Key Vault, storage accounts, web and function apps, App Service plans, SQL and PostgreSQL servers, Cosmos DB, Redis, VNets, NSGs, public IPs, load balancers, application gateways, Bastion, Event Hubs and Service Bus namespaces, Log Analytics workspaces. Never on create or on sub-resources (network vnet subnet show, sql db show).
• References to another resource: --vault-name, --vnet-name, --vm-name, and, only within their family, --account-name (storage …), --server (sql db …), --plan (webapp/functionapp), --cluster-name (aks …). Outside it they mean something else (e.g. a Cosmos DB account) and get no list.
• Context:
  • resource lists are narrowed by the form's --resource-group;
  • every values command follows the form's --subscription;
  • changing either refetches dependent resource lists immediately.
• Superseded fetches: a fetch still in flight is superseded through Field.FetchGen, so a late result for the old context can't overwrite the new list.
• Prefetch: resource lists load in the background when the form opens and are sorted.
• Cache: fetched values are cached for 3 minutes in the cache dir (0700). The key is the full command; the cache is invalidated when azureProfile.json changes (az login / logout / account set).
• Errors: "not signed in (run az login)" and "az not found" replace raw stderr.
• Grid layout: cells show the fetch state (spinner, ▼, !), and the footer names the value count or error for the focused field.
• Filter: leaving the / filter starts the focused field's fetch, as a cursor move does. Before, a field reached via the filter never loaded its list.

Search in popup lists (internal/ui/enum.go, view.go)

• / in a popup starts a case-insensitive search, the same key as the form filter.
• While searching:
  • typed characters (including j, k, q) go into the query and the arrows move;
  • the first Esc ends the search, the second closes the popup.
• The type a value… row stays pinned. When a search finds nothing, picking it opens the editor with the query already typed, for a name that doesn't exist yet.
• Long lists show a / filter hint; an empty result shows the query and (no matches).

Docs

• New README section Live values.
• The Privacy section now mentions the three-minute values cache. The previous text said only enum values were ever persisted.
• The help overlay and README key list mention / inside popups.

Testing

• go vet ./..., gofmt, go test -race ./... pass locally.
• New tests with a stubbed az cover:
  • the source table, including the must-not-list cases;
  • scoping by group and subscription;
  • cache TTL and profile invalidation;
  • prefetch, refetch on context change and superseded results;
  • grid indicators;
  • popup search: narrowing, pinned row, Esc behaviour, empty result, seeded editor.
• Driven live through a pty with the built binary and a fake az: in az vm show, picked the group by searching "weu", then the VM by searching "web". Result: az vm show --name web-02 --resource-group prod-weu --output json. The VM list was requested with --resource-group prod-weu, and a reopen made no az calls (served from the caches).
• Not verified against a real Azure subscription: there is no az login in this environment. The list commands return the standard [{"name": …}] shape the parser already handles.

🤖 Generated with Claude Code

https://claude.ai/code/session_01Dza8X5c3XGHUjejpqGLR8q

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