docs(release): add v2026.722.0 changelog (#10008)
## Release changelog: Paperclip v2026.722.0
Adds `releases/v2026.722.0.md`, the user-facing stable changelog for the
`v2026.722.0` release, generated per
`.agents/skills/release-changelog/SKILL.md`.
- **Range:** `v2026.720.0..origin/master` — 44 commits from 13
contributors.
- **Version:** confirmed via `scripts/release.sh stable --date
2026-07-22 --print-version` → `2026.722.0`.
- **Breaking changes:** none. Two additive DB migrations (Connections v3
schema core + connection user authorization state); no destructive
migrations.
- **Sections:** Highlights (run-bound agent secret access; Windows
local-agent spawning), Improvements, Experimental (Connections v3
foundation, gated behind the Apps experimental setting), Fixes, Upgrade
Guide, Contributors.
Contributor count/names follow the skill rules (bots and Paperclip
founders excluded from the listed names but counted in the total).
Related issue: PAP-14983.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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