Reactive-Resume/docs/execution/briefs/fix-review-plan-16.md

Fix review findings: Plan 16 editable imported tables

Work only in /Users/amruth/orca/workspaces/reactive-resume/issue-3196-editable-tables from exact head 83aca184e4eeb3a9ded36c1f222adf695ef6ca98. Read current repository instructions, pinned approved Plan 16, implementation report, and .orchestration/plan-16-review.md completely. Revalidate origin/main, issue #3196, and overlap before editing. Run root Intent inventory and load matching local skills. No subagents.

Fix every review finding with TDD while preserving existing supported-table behavior:

1. Make unsupported-table detection fail closed before destructive Tiptap normalization. Conservatively reject any cell descendant element/attribute/structure that cannot round-trip through configured editor schema. Cover at least a nested section with aria-label, multiple tbody groups, malformed/repaired table markup, and other representative unrepresented descendants. Ordinary edits, prop updates, lock/keyboard paths, and cancel must preserve exact original HTML bytes for these cases. Do not widen unsafe HTML support.
2. Follow pinned Plan 16: destructive conversion UX is outside this repair. Remove the Convert to editable text action and usePrompt path entirely rather than inventing raw-text or normalized-HTML semantics. Test that unsupported content exposes only an accessible read-only notice and no conversion affordance or ordinary interaction can overwrite it.
3. Strengthen authenticated E2E so an unrelated Basics-name edit proves a real save transition and survives reload before table assertions. Avoid accepting a stale pre-existing Saved status.

Also preserve #3438 cases, supported 2x3 editing/paste/undo/redo/persistence, CSS precedence, PDF border geometry, dependency minimality, SSR/accessibility, and package boundaries. Keep product commit scope to intended implementation, tests, dependency/lockfile, and mandated orchestration report; do not push, publish, reply, or mutate issues.

Run focused and broad web/PDF tests, affected typechecks, boundaries, frozen install, production build, narrow non-writing Biome, diff/scope gates, and dedicated isolated authenticated E2E. Commit fixes locally. Write findings resolved, RED/GREEN evidence, exact head, test results, and remaining limits to .orchestration/plan-16-review-fix.md; send worker_done.