v0.63.0

What's Changed

• docs(marketing): refocus features page on simple core · extensible platform · fleet orchestration by @mabry1985 in #1233
• feat(marketing): desktop download page — Mac .dmg, OS detection, newsletter gate by @mabry1985 in #1236
• feat(skills): progressive disclosure — always-on index + load_skill (ADR 0060) by @mabry1985 in #1235
• refactor(graph): remove the dormant tool-output ingest middleware by @mabry1985 in #1238
• fix(skills): respect skills_top_k=0 in ACP feed + cap load_skill hint by @mabry1985 in #1237
• refactor(settings): make enforcement a fork seam — out of the console by @mabry1985 in #1239
• feat(plugins): late-tools seam — register_late_tool_factory by @mabry1985 in #1240
• feat(plugins): extract execute_code into an opt-in plugin (bd-37i) by @mabry1985 in #1241
• docs(execute_code): describe it honestly — a sandboxed Python interpreter, not just tool-calling by @mabry1985 in #1243
• fix(skills): harden the shared-skills commons (ADR 0041) by @mabry1985 in #1242
• docs(execute_code): drop the "one-shot REPL" framing — it's just an interpreter by @mabry1985 in #1244
• feat(web): fold Shared Skills panel into the Skills view (share + unshare) by @mabry1985 in #1245
• feat(skills): tier-aware curator — commons is dedupe-only (bd-2mc) by @mabry1985 in #1246
• refactor(memory): rename MemoryMiddleware → SessionSummaryMiddleware + fix stale docs by @mabry1985 in #1247
• feat(knowledge): shared knowledge tier — promotion-defined, hybrid, embed-guarded (bd-2wu) by @mabry1985 in #1248
• refactor(memory): make SessionSummaryMiddleware write-only — drop the prior-sessions fallback by @mabry1985 in #1249
• chore(skills): drop the release-notes skill from the core bundle by @mabry1985 in #1251
• feat(web): Knowledge ▸ Store tier badges + share/unshare (bd-2wu console) by @mabry1985 in #1252
• test(memory): end-to-end check that session memory fires in a real graph turn by @mabry1985 in #1250
• docs(release): restore the v0.63.0 changelog body by @mabry1985 in #1254

Full Changelog: v0.62.0...v0.63.0