feat: l for details; details for vaults, scopes and files; getting started; the age of cached lists (#17)

- `l` goes to the details of what is selected; `enter` still drills in
- vaults, scopes and files show their details (vault settings from the listing, no extra requests)
- with nothing to show, the right pane says how to get started
- a list from the cache says how old it is while it reloads
- what is expiring, in the status pane and `lazysecrets expiring`
- when access is refused, what to check, for Azure and Databricks
- no group list in an account's details, and no Microsoft Graph call for it

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docs/azure.md

@@ -16,12 +16,10 @@ A service principal is used instead when `AZURE_CLIENT_ID`,
 On an account's group row, the fourth pane shows who it signs in as: name,
 user, tenant, object ID, whether the session used MFA, directory roles
 (built-in ones by name) and its subscriptions, read from az's account list
-and the token lazysecrets already has. Below them are the groups the
-account is in, nested ones too: those come from Microsoft Graph, once a
-session, the first time the pane shows them. `y` on the row copies the
-object ID, the one access policies and role assignments ask for; `tab`
-goes into the pane, where `j`/`k` pick any field or group, `/` filters
-them (`/tenant`, `/platform`) and `y` copies the selected one.
+and the token lazysecrets already has: no requests of their own. `y` on
+the row copies the object ID, the one access policies and role
+assignments ask for; `l` goes into the pane, where `j`/`k` pick any
+field, `/` filters them (`/tenant`) and `y` copies the selected one.
 
 If an account's az login has expired, the status line says so once, and the
 Details pane on that account's rows says it until you sign in: press `L`
@@ -40,8 +38,10 @@ vault resources (e.g. *Reader*). Key Vault data-plane access is separate
 | read secret values | *Key Vault Secrets User* |
 | read certificate details | *Key Vault Certificate User* |
 
-A missing permission is shown in the pane, including the action that was
-denied.
+A missing permission is shown in the pane, shortened to what was denied
+(the action, or the access policy permission), with what to check: a
+role or group to activate in PIM, access from the vault's owner, or, when
+its firewall refused, the network you're on.
 
 ## Vaults you can't discover
 
@@ -64,3 +64,30 @@ Secrets, keys and certificates, each on their own tab of the Secrets pane
 key (PEM public key) or certificate; private key material is never
 fetched. `v` lists an item's versions. Items expiring within
 `expiryWarningDays` (30 by default) are marked `⚠ 12d`, expired ones `✗`.
+
+The status pane (`0`) lists them across every vault loaded, opened or
+cached, soonest first, and its line counts them (`⚠ 3 expiring`); `enter`
+on one goes to it. That makes no requests of its own: expiry dates come
+with the lists. It says how many vaults it covers; `ctrl+a` in search
+loads the rest.
+
+For a pipeline or a cron job, `lazysecrets expiring` lists them in every
+vault of every account, loading each vault's lists (a few at a time):
+
+```sh
+$ lazysecrets expiring --days 30
+LEFT     EXPIRES     TYPE         VAULT        NAME     LINK
+expired  2026-03-01  certificate  kv-app-prod  old-tls  lazysecrets://azure/kv-app-prod.vault.azure.net/certificates/old-tls
+12d      2026-10-23  secret       kv-app-prod  api-key  lazysecrets://azure/kv-app-prod.vault.azure.net/secrets/api-key
+```
+
+`--days` defaults to `expiryWarningDays`. Accounts that need a sign-in and
+lists it can't read are named on stderr, one line each. Like grep, it
+exits 0 when nothing expires, 1 when it lists something, and 2 when it
+couldn't check everything.
+
+On a vault, the right pane shows its settings: resource group, location,
+SKU, whether access is by Azure roles or access policies, soft delete and
+purge protection, which networks can reach it, private endpoints and tags.
+They come with the list of vaults, so they cost no extra requests and are
+cached with it.