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## Thinking Path > - Paperclip's board UI is the operator surface for supervising AI-agent companies. > - Issue threads are where operators read progress, respond to agents, inspect markdown, and jump through long histories. > - Large threads and rich markdown had become difficult to navigate and expensive to render. > - The previous rollup mixed these UI scale fixes with unrelated backend recovery, costs, backups, and settings changes. > - This pull request isolates the issue-thread scale and markdown polish work. > - The benefit is a reviewable UI slice that can merge independently of the backend reliability, database backup, workflow, and board QoL PRs. ## What Changed - Virtualized long issue chat threads and stabilized anchor/jump-to-latest behavior for large histories. - Added incremental issue-list row loading and tests for scroll-triggered pagination behavior. - Hardened markdown body rendering and markdown editor behavior around HTML tags, image drops, code-copy UI, and escaped newline handling. - Added a long-thread measurement harness at `scripts/measure-issue-chat-long-thread.mjs` plus `perf:issue-chat-long-thread`. - Added focused UI/lib regression coverage for thread rendering, markdown, optimistic comments, and message building. ## Verification - `pnpm install --frozen-lockfile` - `pnpm exec vitest run ui/src/components/IssueChatThread.test.tsx ui/src/components/IssuesList.test.tsx ui/src/components/MarkdownBody.test.tsx ui/src/components/MarkdownEditor.test.tsx ui/src/lib/issue-chat-messages.test.ts ui/src/lib/optimistic-issue-comments.test.ts` - Result: 6 test files passed, 170 tests passed. - UI screenshots not included because this PR is covered by targeted component tests and does not introduce a new page layout. ## Risks - Virtualization changes can affect scroll anchoring in edge cases on very long threads. - Markdown/editor hardening changes are intentionally defensive, but malformed content may render differently than before. > For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and discuss it in `#dev` before opening the PR. Feature PRs that overlap with planned core work may need to be redirected — check the roadmap first. See `CONTRIBUTING.md`. ## Model Used - OpenAI Codex, GPT-5.5, code execution and GitHub CLI tool use, medium reasoning effort. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] If this change affects the UI, I have included before/after screenshots - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Paperclip <noreply@paperclip.ing> |
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| .. | ||
| smoke | ||
| backfill-issue-reference-mentions.ts | ||
| backup-db.sh | ||
| build-npm.sh | ||
| build-standalone-public-packages.mjs | ||
| check-docker-deps-stage.mjs | ||
| check-forbidden-tokens.mjs | ||
| clean-onboard-git.sh | ||
| clean-onboard-npm.sh | ||
| clean-onboard-ref.sh | ||
| create-github-release.sh | ||
| dev-runner-output.mjs | ||
| dev-runner-output.ts | ||
| dev-runner-paths.mjs | ||
| dev-runner.mjs | ||
| dev-runner.ts | ||
| dev-service-profile.ts | ||
| dev-service.ts | ||
| discord-daily-digest.sh | ||
| docker-build-test.sh | ||
| docker-entrypoint.sh | ||
| docker-onboard-smoke.sh | ||
| ensure-plugin-build-deps.mjs | ||
| ensure-workspace-package-links.ts | ||
| generate-company-assets.ts | ||
| generate-npm-package-json.mjs | ||
| generate-org-chart-images.ts | ||
| generate-org-chart-satori-comparison.ts | ||
| generate-plugin-package-json.mjs | ||
| generate-ui-package-json.mjs | ||
| kill-agent-browsers.sh | ||
| kill-dev.sh | ||
| kill-vitest.sh | ||
| link-plugin-dev-sdk.mjs | ||
| measure-issue-chat-long-thread.mjs | ||
| migrate-inline-env-secrets.ts | ||
| paperclip-commit-metrics.ts | ||
| paperclip-issue-update.sh | ||
| prepare-server-ui-dist.sh | ||
| provision-worktree.sh | ||
| release-lib.sh | ||
| release-package-map.mjs | ||
| release.sh | ||
| rollback-latest.sh | ||
| run-vitest-stable.mjs | ||
| screenshot-pap2373.mjs | ||
| screenshot-subissues.mjs | ||
| screenshot.cjs | ||
| verify-release-registry-state.mjs | ||
| verify-release-registry-state.test.mjs | ||