Looper v0.7.5

What's Changed

• feat: add manual fixer CLI trigger by @mrcfps in #303
• fix: require reviewer worktree reuse by @mrcfps in #304
• fix: align loop pause usage with supported arguments by @mrcfps in #302
• fix: use a library-backed upgrade progress UI by @mrcfps in #301
• fix: make fixer review-thread resolution durable across reruns by @mrcfps in #311
• fix: stamp Looper disclosure on agent-created worker PR bodies by @mrcfps in #310
• fix: prevent fixer follow-up starvation after no-op resolve by @mrcfps in #312
• fix: require fixer confirmation before resolving review threads by @mrcfps in #314
• fix: adopt validated agent-created PRs on migrated worker branches by @mrcfps in #316
• fix: sanitize agent cwd env for isolated worktrees by @mrcfps in #319
• refactor: simplify fixer review-thread resolution authority by @mrcfps in #320
• docs: add design guidelines to AGENTS.md by @mrcfps in #321
• fix: surface fixer declines and stop zero-progress loops by @mrcfps in #325
• feat: improve auto-upgrade UX with background downloads by @mrcfps in #305
• test: complete e2e regression rollout by @mrcfps in #306
• fix: drop fix-items-hash gate that drift-loops resolve-comments by @mrcfps in #326
• fix: keep unresolved sandbox review threads blocked by @mrcfps in #330

Full Changelog: v0.7.4...v0.7.5