Improve Russian localization workflow and fix Linux startup issues

.gitignore

@@ -42,6 +42,8 @@ dep_Debug
 out
 .history/
 scripts/__pycache__
+.translation-cache/
+*.po.bak
 web_sync_tag
 version.txt
 var.prop

doc/Russian_localization_workflow.md

@@ -0,0 +1,117 @@
+# Russian Localization Workflow
+
+This workflow improves `localization/i18n/ru/CrealityPrint_ru.po` in small,
+reviewable batches. It avoids sending the full PO file to a model and keeps a
+local cache under `.translation-cache/ru`.
+
+## 1. Initialize
+
+```bash
+python3 scripts/ru_l10n_tool.py init
+```
+
+This creates:
+
+- `localization/i18n/ru/CrealityPrint_ru.po.bak`
+- `.translation-cache/ru/glossary.json`
+- `.translation-cache/ru/state.json`
+
+## 2. Audit
+
+```bash
+python3 scripts/ru_l10n_tool.py audit
+```
+
+Important outputs:
+
+- `.translation-cache/ru/audit_summary.md`
+- `.translation-cache/ru/audit_summary.json`
+- `.translation-cache/ru/queue.jsonl`
+
+The queue contains only suspicious entries: empty translations, fuzzy entries,
+robot-generated text, placeholder mismatches, English fragments in Russian text,
+obvious machine-translation artifacts, and suspicious brand replacement.
+
+## 3. Export a Small Batch
+
+```bash
+python3 scripts/ru_l10n_tool.py export-batch --size 50
+```
+
+This creates:
+
+- `.translation-cache/ru/batches/batch-0001.json`
+- `.translation-cache/ru/batches/batch-0001.prompt.md`
+
+Use the prompt file with a translator or LLM. The response must be JSON:
+
+```json
+{
+  "items": [
+    {"id": "entry-id", "msgstr": "Исправленный перевод"},
+    {"id": "plural-entry-id", "msgstr_plural": {"0": "...", "1": "...", "2": "..."}}
+  ]
+}
+```
+
+If a translation needs quotes inside `msgstr`, use Russian guillemets `«...»`
+or escape JSON quotes as `\"...\"`. Do not paste raw unescaped `"` inside JSON
+strings.
+
+## 4. Apply Reviewed Results
+
+Save the reviewed JSON response, then run:
+
+```bash
+python3 scripts/ru_l10n_tool.py apply-batch .translation-cache/ru/batches/batch-0001.result.json
+```
+
+The tool refuses to apply a batch if placeholders, line breaks, or gettext
+format checks fail. If `msgfmt` fails after writing the PO file, the batch is
+rolled back automatically.
+
+Applied translations are appended to:
+
+- `.translation-cache/ru/translation_memory.jsonl`
+
+## 5. Verify Anytime
+
+```bash
+python3 scripts/ru_l10n_tool.py verify
+```
+
+This runs placeholder checks and:
+
+```bash
+msgfmt --check-format
+```
+
+The report is written to `.translation-cache/ru/verify_report.json`.
+
+## 6. Manual Sampling
+
+After several batches, create a small random review sample:
+
+```bash
+python3 scripts/ru_l10n_tool.py sample --size 30
+```
+
+Review `.translation-cache/ru/review_sample.json` by eye.
+
+## Glossary Defaults
+
+- `filament` -> `филамент`
+- `preset` -> `профиль`
+- `slice / slicing` -> `нарезка`
+- `build plate / plate` -> `пластина`
+- `nozzle` -> `сопло`
+- `extrusion` -> `экструзия`
+- `infill` -> `заполнение`
+- `support` -> `поддержка`
+- `raft` -> `рафт`
+- `brim` -> `кайма`
+- `skirt` -> `юбка`
+- `G-code` -> `G-code`
+- `Creality Print` is not translated.
+- `Bambu`, `Prusa`, and `OrcaSlicer` must not be replaced with `Creality`
+  unless the source text itself says so.

resources/profiles/Kingroon.json

@@ -7,7 +7,7 @@
   "machine_model_list": [
     {
       "name": "Kingroon KP3S PRO S1",
-      "sub_path": "machine/Kingroon KP3S PRO S1.json"
+      "sub_path": "machine/kingroon kp3s pro s1.json"
     },
     {
       "name": "Kingroon KP3S PRO V2",
@@ -133,7 +133,7 @@
     },
     {
       "name": "Kingroon KP3S PRO S1 0.4 nozzle",
-      "sub_path": "machine/Kingroon KP3S PRO S1 0.4 nozzle.json"
+      "sub_path": "machine/kingroon kp3s pro s1 0.4 nozzle.json"
     },
     {
       "name": "Kingroon KP3S PRO V2 0.4 nozzle",