feat: lazysecrets list prints everything lazysecrets can find, for fzf and editor pickers (#70)

`lazysecrets list` prints every source, vault and secret lazysecrets can find, one per line, for fzf, editor pickers and scripts: what Go to searches, without the TUI. What's cached prints at once; what's missing or older than `--max-age` loads in the background and streams in. It stops when the reader goes (a pick in fzf), saving what it loaded.

- Text: kind, mark (✗/⚠, ★, ◷ and the provider icon), name, status (why it couldn't be read, or expired / expires in 12d), note, account and link, tab-separated; kind first and account and link last, so new fields go between. Coloured from the theme; `--color never`, `--icons=false`, `--stars=false`, `--recent`, `--notes=false`, `--expiry=false`.
- `--format json`: an object per line, with starred, recent, lastUsed and uses, expires, enabled, note, reference and url too.
- `--kind` lists only some kinds, and doesn't load lists only other kinds need; `--cached` loads nothing.
- `lazysecrets open --action go|copy|show` skips the "what to do" menu and ends in the list, like Go to; `open` and `get` take `--account`, the account list printed, rather than asking which.
- The cache file moved to `internal/cachefile`: saves merge with the file under a lock, so list and the TUI don't undo each other.
- `ui.recentIcon` marks items used lately with ◷ in the TUI's lists too; Recent now means the last 90 days.
- --demo has stars, notes, recent use, and expired, expiring and disabled secrets.
- docs/integration.md documents get, list and an fzf picker; docs/links.md is docs/sharing.md.

Reviewed-on: #70
Co-authored-by: Karl-Einar Bergstrøm <karl-einarb@outlook.com>

internal/ui/app/links_test.go

@@ -181,7 +181,7 @@ func TestPasteWhileFilteringFilters(t *testing.T) {
 	t.Parallel()
 	d := newDriver(t)
 	d.keys("3", "/")
-	d.send(tea.PasteMsg{Content: "api"})
+	d.send(tea.PasteMsg{Content: "api-k"})
 	if d.m.secrets.Len() != 1 || d.m.nav != nil {
 		t.Errorf("paste in filter: visible %d", d.m.secrets.Len())
 	}
@@ -203,8 +203,21 @@ func TestOpenPromptAndStartupOpen(t *testing.T) {
 		t.Fatal("open at startup didn't ask what to do")
 	}
 	d2.keys("o")
-	if _, _, s := d2.selected(); s != "api-key" {
-		t.Errorf("open at startup: selected %q", s)
+	if _, _, s := d2.selected(); s != "api-key" || d2.m.focus != paneDetail {
+		t.Errorf("open at startup: selected %q, focus %v, want the details", s, d2.m.focus)
+	}
+
+	// --action: no question, it does that.
+	d3 := newDriverOpts(t, Options{Open: &r, OpenAction: "go"})
+	if d3.m.prompt != nil {
+		t.Fatalf("--action go asked: %q", d3.m.prompt.title)
+	}
+	if _, _, s := d3.selected(); s != "api-key" || d3.m.focus != paneSecrets {
+		t.Errorf("--action go: selected %q, focus %v, want the secrets list, like Go to", s, d3.m.focus)
+	}
+	d4 := newDriverOpts(t, Options{Open: &r, OpenAction: "copy"})
+	if _, _, s := d4.selected(); s != "api-key" || d4.clip().content == "" {
+		t.Errorf("--action copy: selected %q, copied %q", s, d4.clip().content)
 	}
 }
 
@@ -305,6 +318,20 @@ func TestOpenAsksWhichAccount(t *testing.T) {
 		t.Errorf("j enter picked %q", c.Source.Provider)
 	}
 
+	// lazysecrets open --account: no question, that account.
+	r, _ := ref.Parse("lazysecrets://azure/" + kv + "/secrets/api-key")
+	r.Account = "Azure:bob@example.com/t1"
+	d.send(OpenLink(r))
+	if d.m.prompt != nil && d.m.prompt.title == "Open link" {
+		d.keys("o")
+	}
+	if strings.Contains(d.screen(), "Several accounts can see") {
+		t.Fatalf("asked, with an account given:\n%s", d.screen())
+	}
+	if c, _ := d.m.containers.Selected(); c.Source.Provider != r.Account {
+		t.Errorf("--account opened via %q", c.Source.Provider)
+	}
+
 	// Opening into a folded account unfolds it.
 	d.keys("1", "g") // alice's header
 	d.keys("enter")  // fold it