Task: Integrate Windows titlebar logo fix

Identity

Integrate source commit 99a210e from task 20260901-windows-titlebar-logo-overlap-5100e298 onto local main.
Re-run proportionate verification against the current integrated tree.
Record the integration in canonical current state without promoting new architecture, domain, or product-direction claims.

Preserve the source change exactly unless the current main requires an explicit, reviewed conflict resolution.
Keep the fix limited to Windows titlebar control spacing and its focused regression coverage; macOS/Linux behavior remains unchanged.
Do not push, deploy, package, publish, or alter application identity, protocols, backend contracts, or unrelated layout.
Preserve the pre-existing untracked package task records 20260901-package-122-c5e8.md and 20260901-package-123-d7f3.md byte-for-byte and exclude them from all commits.
Treat the source task record and its supporting evidence as read-only integration inputs.

Project goal: preserve Makelore's four-module cross-platform Electron product and single light visual system.
Current integrated focus: local main already contains the latest Web Search correction; this task is an independent Renderer-shell integration.
Active task scope: integrate one completed Windows titlebar spacing correction, verify it on the current default branch, and record the exact integration frontier.
Active constraints: no macOS/Linux behavior change, no unrelated layout or contract change, and no push, deployment, packaging, or publication.
Decisions affecting this task: no accepted ADR or product-direction change is required; the Renderer/Main ownership boundary remains unchanged.
Evidence, reflections, or commitments: the source task contains a deterministic pre-fix Electron reproduction and complete local verification; no reflection or future commitment is introduced.
Files involved: shared TitleBar component, focused unit/Electron tests, source task record, this integration record, and canonical current state.
Other active local tasks: all 207 peer task records were readable; only the completed source task shares titlebar semantics.
Unknowns or conflicts: project-positioning.md remains a template placeholder, but AGENTS guidance, system overview, and current state provide the applicable product boundary. No unresolved semantic conflict exists.
Gate result: Passed.

Cherry-picked source commit 99a210e244731d1cdc923e9dd4adf6e09e64c2a4 without conflict as product commit e800d42595484389432fd08b11c2202074a7009e on local main.
The shared Windows TitleBar now reserves the same 148 px region for both the custom controls and the Logo inset, eliminating the Canvas and Coding overlap while retaining the existing macOS/Linux behavior.
Canonical current state records the exact source and product commits; no architecture, ADR, domain rule, backend contract, application identity, package, deployment, or publication changed.
The two pre-existing untracked package task records remain outside this task and outside all commits.

Source evidence adopted: deterministic pre-fix Electron reproduction; focused 11/11; 214 files / 1,759 tests plus pressure; typecheck; scoped/full lint; Vite build; and two focused Electron E2E checks passed.
Post-integration focused unit: tests/unit/title-bar.test.tsx passed 11/11.
Post-integration pnpm run typecheck and scoped ESLint passed.
Post-integration pnpm run build:vite passed; existing Browserslist, mixed dynamic/static import, and chunk-size warnings remain non-blocking.
Post-integration Windows Canvas and Coding Electron titlebar E2E checks passed 1/1 each.
Post-integration pnpm run lint:check passed with 0 errors and the same 5 pre-existing warnings in untouched Home and Makelore pages.
Post-integration pnpm test passed 215 files / 1,788 tests with 2 skipped; pressure suite passed 1/1.

None. This integration records a local Renderer layout correction and does not alter canonical architecture, domain rules, or product direction.