fix(i18n): isolate unknown-direction directory and file names

[seonghobae]

Current UX/i18n boundary

Filesystem-supplied directory and file names can have an unknown base direction. WHATWG HTML defines dir="auto" as directionally isolated text whose direction is chosen from the element contents with a first-strong-character heuristic. W3C Internationalization recommends it for inserted multilingual text whose direction is not known in advance, while explicitly noting corner cases.

This is therefore a narrow dynamic-text contract, not a promise that dir="auto" fixes every mixed-direction punctuation case and not a repository-wide rule for fixed product copy.

RED → GREEN and non-force stack repair

The prior exact head a1b9b9816e2a620b9afe37602784e4d013856722 had three repair findings:

• its only regression asserted dir="auto" on a fixed ASCII Root heading rather than exercising RTL/mixed-script generated content;
• generated .jules/palette.md carried a future-dated 2026-11-20 repository-wide always rule;
• the filename span was based on stale markup and would overwrite canonical fix(ui): make pressed-link feedback visible on the rendered filename #599's semantic .entry-name interaction target.

Normal two-parent descendant 0c2dbaef849d91d61a712e3a52ad4394927ce1dc preserves the old #622 head as first parent and #599 exact head b811d4721ab3940774e88d1ed73bbfd89137d3a5 as second parent. The branch ref advanced with force=false; no rebase or history deletion was used. Follow-up fc4948911f87ec92f0fc8421798741ca8ef7340b only corrects the living-standard references to APA 7 n.d. plus retrieval-date form.

The merged tree:

• keeps fix(ui): make pressed-link feedback visible on the rendered filename #599's .entry-name markup and hover/focus-visible/active regression;
• adds dir="auto" only to the dynamic directory <h1> and visible dynamic .entry-name filename span;
• leaves the fixed parent .. row and visually hidden Korean type label outside the auto-direction boundary;
• restores .jules/palette.md byte-for-byte to protected/canonical content;
• adds BidirectionalTextDirectionTest using a real generated index with mixed Arabic/Latin directory and filename text;
• records the buyer-visible behavior in CHANGELOG.md;
• adds docs/doctoring/bidirectional-generated-names.md with scope, alternatives, rollback, verification and primary WHATWG/W3C traceability in APA 7 form.

Fresh protected-base comparison from master@728f0f33323e43573d6664209891099502827d5d to exact current head fc4948911f87ec92f0fc8421798741ca8ef7340b is ahead 18 / behind 0 with merge base exactly that protected head. Effective paths are CHANGELOG.md, the BiDi doctoring record, main.kt, the new BiDi regression, #599's generated-index regression, and the existing MainTest.kt heading assertion. The generated Palette doctrine is no longer in the diff.

Primary references:

• WHATWG HTML Standard, dir attribute: https://html.spec.whatwg.org/multipage/dom.html#the-dir-attribute
• W3C Internationalization, Structural markup and right-to-left text in HTML: https://www.w3.org/International/questions/qa-html-dir

Exact-head evidence

Fresh pull-request workflows have materialized on fc4948911f87ec92f0fc8421798741ca8ef7340b: CI 33961245173, Security Scan 33961245094, SAST Semgrep 33961245115, and CodeQL PR 33961245121 are queued. None is terminal GREEN, and no predecessor evidence transfers.

Keep Draft until this unchanged exact head has terminal applicable CI/security/SAST/CodeQL and current review evidence. Browser/accessibility-tree verification should confirm the generated RTL/mixed-script name direction without changing the parent-navigation/type-label semantics; source tests do not substitute for runtime browser evidence.

Delivery Gate

• 의도성: PASS — unknown-direction external text is isolated without changing fixed Korean UI copy.
• 기능 완전성: PARTIAL — source, stack and real generated-output regression are repaired; exact-head browser/hosted execution is pending.
• 콘텐츠 적합성: PASS — future-dated/global generated doctrine is removed; no template-only UI was added.
• 복원력: PARTIAL — mixed Arabic/Latin output and fixed-copy boundaries are executable contracts; browser/AT evidence remains.
• 증거성: PARTIAL — primary standards, APA 7 code-current doctoring, CHANGELOG and exact-head tests exist; hosted gates are non-terminal.
• 고유성: N/A — i18n/markup contract, not a brand redesign.

No self-approval, force-push, destructive rebase, no-op retrigger, gate weakening, or predecessor-evidence transfer.

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