fix: restore full-suite green — i18n parity (FN-7658) + chat core mock (FN-7675) + verification-followup-dedup (FN-7658)

[gsxdsm]

Summary

Follow-up to #1947. The full-suite on main is still red on 3 surfaces introduced by post-#1947 commits. This PR fixes the two real test failures and the i18n parity gap.

Fixes

• i18n key parity (FN-7658) — settings.scheduling.autoArchiveDuplicateTasks + ...Help were added to en but not the 5 non-en catalogs, breaking the i18n parity gate (parity.test.ts, i18n-gate-coverage.test.ts). Added the 2 keys (empty-string per the untranslated-entry convention) to zh-CN, zh-TW, fr, es, ko in packages/i18n/locales (the single source of truth; dashboard/app/locales is gitignored and synced in CI).
• chat.test.ts (FN-7675) — chat.ts now imports FUSION_RUNTIME_SELF_AWARENESS from @fusion/core (CHAT_SYSTEM_PROMPT embeds it); the hand-written core mock didn't stub it, so the module failed to load. Added a stub (importOriginal intentionally avoided to preserve the fs-cascade block).
• verification-followup-dedup.test.ts (FN-7658) — the "remains additive with FN-4892 same-agent duplicate intake" test asserts the ARCHIVE path, but FN-7658 made same-agent auto-archiving opt-in (autoArchiveDuplicateTasksEnabled defaults false → flag-in-place in triage). The test now opts into the legacy archive behavior it asserts.

Note on shard-2 engine[2/2] timeout

The full-suite shard 2 times out on @fusion/engine [2/2] (watchdog 900s). Locally [2/2] runs in ~96s and is green (the lone provider-registration.test.ts failure is local-only pi-ai@0.79.9 staleness — the lockfile pins 0.80.3 which exports /compat, so CI resolves it). The verification-followup-dedup failure above is the only real [2/2] defect; this PR fixes it. If the CI timeout persists it's aggregate real-git load, which I'll address separately (not a code bug).

Verification

• i18n parity + i18n-gate-coverage: 7/7 ✅
• chat.test.ts: 14/14 ✅
• verification-followup-dedup: 5/5 ✅
• engine --shard=2/2 (excluding the local-staleness file): 363 files / 4483 tests ✅ in ~96s

No production behavior change; no changeset needed (i18n catalog + test-only).

Summary by CodeRabbit

• New Features
  • Added scheduling settings for automatic duplicate-task archiving, including label and help text entries (currently placeholders) across Spanish, French, Korean, Simplified Chinese, and Traditional Chinese.
• Bug Fixes
  • Updated “awaiting confirmation” merger messaging to better reflect when auto-merge proceeds automatically.
• Tests
  • Updated reliability interaction tests to explicitly opt into legacy duplicate-task archiving behavior.
  • Adjusted chat-related tests by extending the runtime mock to satisfy a new core import requirement.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 38479012-44ce-4965-8c45-74a0d1092437

📥 Commits

Reviewing files that changed from the base of the PR and between 0bfe7e8 and 5815cd1.

📒 Files selected for processing (1)

• .changeset/fn-7692-merger-confirmation-copy.md

✅ Files skipped from review due to trivial changes (1)

• .changeset/fn-7692-merger-confirmation-copy.md

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📝 Walkthrough

Walkthrough

This PR updates a test mock and a reliability test, adds new empty localization keys for auto-archiving duplicate tasks in five locales, and revises a changeset summary about merger confirmation copy.

Changes

Test mock and behavior flag updates

Layer / File(s)	Summary
Chat test mock export fix packages/dashboard/src/__tests__/chat.test.ts	Adds FUSION_RUNTIME_SELF_AWARENESS stub to the @fusion/core mock so chat.js loads with the newly required import.
Dedup test archive flag opt-in packages/engine/src/__tests__/reliability-interactions/verification-followup-dedup.test.ts	Explicitly enables autoArchiveDuplicateTasksEnabled via updateSettings to opt into the legacy archive path, with an explanatory comment.

Auto-archive duplicate tasks locale strings

Layer / File(s)	Summary
New locale keys across languages packages/i18n/locales/es/app.json, packages/i18n/locales/fr/app.json, packages/i18n/locales/ko/app.json, packages/i18n/locales/zh-CN/app.json, packages/i18n/locales/zh-TW/app.json	Adds autoArchiveDuplicateTasks and autoArchiveDuplicateTasksHelp keys under settings.scheduling with empty string values.

Merger confirmation copy update

Layer / File(s)	Summary
Changeset summary rewrite .changeset/fn-7692-merger-confirmation-copy.md	Updates the changeset summary text to clarify the awaiting-confirmation copy when auto-merge proceeds automatically.

Estimated code review effort: 1 (Trivial) | ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the PR as a suite-green fix covering the three main change areas.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/full-suite-flaky

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[greptile-apps]

Greptile Summary

This PR restores a green full-suite by fixing three independent test/i18n breakages introduced after #1947, with no production behavior changes.

• i18n parity: Adds the two new autoArchiveDuplicateTasks / autoArchiveDuplicateTasksHelp keys as empty-string placeholders to all five non-en locales (es, fr, ko, zh-CN, zh-TW), satisfying the parity gate.
• chat mock: Stubs the new FUSION_RUNTIME_SELF_AWARENESS export in the hand-written @fusion/core mock so chat.js can load without pulling in real fs modules.
• verification-followup-dedup test: Explicitly opts into autoArchiveDuplicateTasksEnabled: true for the test that asserts the ARCHIVE path, since FN-7658 changed the default to false.

Confidence Score: 5/5

All changes are test-only or i18n placeholder additions with no runtime behavior change; safe to merge.

Every touched file is either a test fixture, an i18n locale JSON with empty-string placeholders, or a changeset description tweak. The test fixes accurately reflect the real behavioral change (opt-in flag default) and the mock extension is intentionally minimal to avoid the fs cascade the mock exists to prevent.

No files require special attention.

Important Files Changed

Filename	Overview
packages/dashboard/src/tests/chat.test.ts	Adds FUSION_RUNTIME_SELF_AWARENESS: "" stub to the hand-written @fusion/core mock so chat.js can load without triggering the real fs cascade.
packages/engine/src/tests/reliability-interactions/verification-followup-dedup.test.ts	Opts the ARCHIVE-path assertion into autoArchiveDuplicateTasksEnabled=true, aligning the test with FN-7658's new opt-in default.
packages/i18n/locales/es/app.json	Adds autoArchiveDuplicateTasks and autoArchiveDuplicateTasksHelp as empty-string placeholders per untranslated-entry convention.
packages/i18n/locales/fr/app.json	Same two empty-string placeholder keys added as in es/app.json.
packages/i18n/locales/ko/app.json	Same two empty-string placeholder keys added as in es/app.json.
packages/i18n/locales/zh-CN/app.json	Same two empty-string placeholder keys added as in es/app.json.
packages/i18n/locales/zh-TW/app.json	Same two empty-string placeholder keys added as in es/app.json.
.changeset/fn-7692-merger-confirmation-copy.md	Minor wording refinement to the merger awaiting-confirmation changeset description; no behavioral change.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Full-suite red on 3 surfaces] --> B[i18n parity gate]
    A --> C[chat.test.ts load failure]
    A --> D[verification-followup-dedup test]

    B --> B1[Add 2 empty-string keys to es/fr/ko/zh-CN/zh-TW]
    B1 --> B2[parity + i18n-gate-coverage green]

    C --> C1[Stub FUSION_RUNTIME_SELF_AWARENESS in core mock]
    C1 --> C2[chat.test.ts 14/14 green]

    D --> D1[Set autoArchiveDuplicateTasksEnabled=true in fixture]
    D1 --> D2[verification-followup-dedup 5/5 green]

Loading

%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[Full-suite red on 3 surfaces] --> B[i18n parity gate]
    A --> C[chat.test.ts load failure]
    A --> D[verification-followup-dedup test]

    B --> B1[Add 2 empty-string keys to es/fr/ko/zh-CN/zh-TW]
    B1 --> B2[parity + i18n-gate-coverage green]

    C --> C1[Stub FUSION_RUNTIME_SELF_AWARENESS in core mock]
    C1 --> C2[chat.test.ts 14/14 green]

    D --> D1[Set autoArchiveDuplicateTasksEnabled=true in fixture]
    D1 --> D2[verification-followup-dedup 5/5 green]

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