Buzz Desktop v0.4.7

• feat(desktop): confirm invites with an Opening-invite loading gate before machine onboarding (#1950) (2510a4b4c)
• feat(desktop): remove theme selection from onboarding, default to Buzz + System (#1947) (2c08271ba)
• fix(desktop): sentence-case runtime descriptions in onboarding setup (#1944) (36c3c4994)
• feat(desktop): Projects v3 — overview redesign, activity feed, agent access & sync controls (#1851) (72a5c388d)
• Rework first-launch community onboarding (#1936) (8688c0416)
• fix(desktop): stop marking users away while active on the machine (#1942) (e1865cb7f)
• fix(desktop): variant-aware connecting gate for first-run handoffs (#1938) (dd39b6249)
• Redesign agent AI configuration and defaults (#1935) (2910ea45d)
• Add Buzz-managed Node runtime for agent installs (#1930) (0722346b1)
• feat(desktop): return nostr binding proof in browser fragment (#1933) (ccf7f1a2d)
• Use selected relay for desktop pairing socket (#1934) (91be66a2d)
• fix(desktop): allow editing built-in agents (#1928) (202201f3a)
• fix(desktop): load downloaded mesh runtime on signed macOS builds (#1932) (32957692e)
• feat(media): require auth for relay media reads (#1926) (f30876285)
• fix(desktop): remove superseded built-in agents (#1929) (dbf2cfc21)
• Move agent AI defaults into Settings (#1919) (3e90dd5dd)
• feat(desktop): add Honey and Bumble starter agents (#1925) (335413461)
• feat(desktop): expand owned team mentions (#1918) (470458d32)
• Fix live agent reactions in Inbox and channels (#1921) (8212a8723)
• refactor(desktop): unify page/section header hierarchy across Agents and Settings (#1912) (7fbdacb03)