docs(integration): record Square auth main promotion

.project-docs/30-worklog/tasks/20260819-promote-square-auth-client-73e4c1.md

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+# Task: Promote Square auth client candidate to main
+
+## Identity
+
+- Task ID: 20260819-promote-square-auth-client-73e4c1
+- Mode: Integration
+- Branch: main
+- Worktree: D:\Datas\OthersProjects\makelore
+- Base commit: 1907924203a1a998182c8e44e8884682ef216d95
+- Owner: codex-root
+- Status: Completed
+
+## Scope
+
+- Fast-forward local `main` from `1907924` to verified candidate `e7ec12d`.
+- Keep the accepted Square authentication boundary and code changes while replacing the candidate integration task record with this promotion task record.
+- Verify the final default-branch tree and project-document ownership gates.
+
+## Intent And Constraints
+
+- Preserve `.project-docs/30-worklog/tasks/20260819-package-learning-off-115-9c4d.md` exactly as authorized; it is not part of this promotion.
+- Do not merge unrelated branches or push to a remote.
+- Keep Renderer credential-free, Main as session owner, and all login/refresh/logout traffic behind Works Square.
+
+## Outcome
+
+- Fast-forwarded local `main` from `1907924` to verified Square-auth candidate `e7ec12d` without conflicts.
+- Replaced the candidate integration task record with this promotion record and updated canonical current state to identify the local `main` promotion.
+- Preserved `.project-docs/30-worklog/tasks/20260819-package-learning-off-115-9c4d.md` as an unrelated untracked file and did not stage, edit, or delete it.
+
+## Verification
+
+- Final `main`: focused Works-session/auth-route suite passed 56/56 using the candidate worktree's lock-equivalent Vitest 4.1.1 binary.
+- Final `main`: TypeScript `--noEmit` passed using the same verified candidate toolchain.
+- Candidate full suite passed 184 test files and 2,190 tests before promotion.
+- `git diff --check` passed.
+- The normal pnpm wrapper stopped before test execution because the primary worktree's existing `node_modules` metadata would require a non-interactive purge; no dependency directory was removed or changed by this task.
+
+## Follow-ups
+
+- Deploy and smoke-test the matching Works Square server endpoints before releasing a desktop build.
+
+## Promotion Candidates
+
+- None; this task promotes an already accepted and documented integration candidate.