fix(i18n): localise attachment size displays

docs/i18n/ATTACHMENT_SIZE_FORMATTING.md

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+# Attachment size localisation
+
+3 November 2026. Isolated `codex/i18n-attachment-sizes` from published `ca519cacbec6ee8e385927ad31356dacc18b2f2d`. Ordinary localisation work is authorised independently of the pending A3 increment gate. This branch does not replace the newer A3 application tree.
+
+`Attachments` and the frozen submitted-package attachment list displayed decimal points through `toFixed`, even with Norwegian UI text. They now use `Intl.NumberFormat` with the existing UI language. The attachment table keeps its existing 1024-based KB/MB threshold, zero KB decimals and one MB decimal. Frozen package labels keep one KB decimal. No stored file size, filename, snapshot, route, API, revision, download or generation language changes.
+
+Verification:
+
+- Red regression: two Norwegian-format cases failed, one English case passed; 58 cases were filtered, not executed. Native `attachment-size-red.json`.
+- Full affected suites: **61 passed**, zero failed/skipped, two suites; `attachment-size-tests.json`. Includes EN/NB MB labels and changing the UI locale on a retained frozen package without a write.
+- Typecheck, scoped ESLint for the four affected files, static-export build and `git diff --check`: PASSED.
+- AST-only graph refresh PASSED:18,702 nodes/46,195 edges/1,119 communities. Optional SQL parser is absent and143 files yielded no symbols; these are graph coverage limits. Generated graph stays local.
+- Independent static review found no actionable issues; verification reruns were not added to the61 cases.
+
+Rollback reverts these four source/test changes; no database rollback is required. The published branch remains separate until its narrow delta is reconciled against the newer A3 baseline. Existing physical PDF metrics and visual acceptance are unaffected; no renderer source changed.
+
+NOT RUN: new browser/device or physical PDF checks, complete European localisation, native-language review, backend/provider/live-model or release qualification. Existing tests and code remain responsible for file permissions and downloads; this display-only change adds no new access path. The 188 historical dynamic-call reviews remain accounted for and are not expanded by these three numeric-format regressions.

docs/i18n/ATTACHMENT_SIZE_MANIFEST.json

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+{
+  "base": "ca519cacbec6ee8e385927ad31356dacc18b2f2d",
+  "policy": "LF-normalised text SHA256",
+  "files": {
+    "job-tracker-ui/src/components/Attachments.tsx": "02081be8282cb3d1a525b336bededb8aabe561cc3b73e1b98e924f9ef945add1",
+    "job-tracker-ui/src/components/ApplicationAssets.tsx": "effcee6cfa0a43ebe0d73a0da625410dc98a6580fddda225b843e5e00d4e45f6",
+    "job-tracker-ui/src/attachments.test.tsx": "89bb3e277ae7be652073eec6d3b6188bcbeaea8b29b07478ff5b21654be8e7c1",
+    "job-tracker-ui/src/application-assets.test.tsx": "980a346cb4452ac4b7e6b689a963e5a23fc6d77410e47e66a422f9cd9c704e7b",
+    "docs/i18n/ATTACHMENT_SIZE_FORMATTING.md": "4576ccfc3de3b72cd3e5591c40f697b827d724b8f4fe588b54567dbe75252332",
+    "docs/i18n/attachment-size-red.json": "872882cb7d2937bf1df7f7a89810158c5de831381f56c6ae8bb0263d26b84d8e",
+    "docs/i18n/attachment-size-tests.json": "8b8188d432b7788f951cf2c67f790c6cd4d24553ed9accbeb702645b3d4b2c6a"
+  }
+}