fix(i18n): fill missing zh-CN and ru UI translations (#3026, #3067) (#3103)

zh-CN and ru were each missing 9 whole sections (~823 keys: quotaPlans, activity, agentBridge, trafficInspector, cliCommon, cliCode, cliAgents, acpAgents, agentSkills) added after the last sweep, so those UI strings fell back to English. Filled via the canonical i18n sync+translate pipeline (scripts/i18n/sync-ui-keys.mjs --translate-markers). Both catalogs are now at full key parity with en.json (70 sections / 8025 keys), 0 __MISSING__ markers, valid JSON, Prettier-clean.

CHANGELOG.md

@@ -22,6 +22,7 @@ _Development cycle in progress — entries are added as work merges into `releas
 
 ### 🔧 Bug Fixes
 
+- **i18n:** fill the missing Chinese (zh-CN) and Russian (ru) UI translations — both locales were missing 9 entire sections (`quotaPlans`, `activity`, `agentBridge`, `trafficInspector`, `cliCommon`, `cliCode`, `cliAgents`, `acpAgents`, `agentSkills`, ~823 keys each) added after the last translation sweep, so those buttons/labels rendered in English. Both catalogs are now at full key parity with `en.json` (8025 keys). ([#3026](https://github.com/diegosouzapw/OmniRoute/issues/3026), [#3067](https://github.com/diegosouzapw/OmniRoute/issues/3067))
 - **dashboard:** fix "Ambiguous model" error in the provider Playground for vendor-namespaced models — the Playground only prefixed models without a `/`, so ids like `moonshotai/kimi-k2.6` or `nvidia/zyphra/zamba2-7b-instruct` (NVIDIA NIM) were sent bare and rejected when the same id exists under multiple providers. The Playground now always qualifies the selected model with its `providerId/` prefix (without double-prefixing). ([#3050](https://github.com/diegosouzapw/OmniRoute/issues/3050))
 - **db:** stop accepting duplicate API keys for the same provider — `createProviderConnection` now dedups by the decrypted key value (not just by name), so re-adding the same key under a different/blank name updates the existing connection instead of inserting a second row. Whitespace-only differences also dedup. ([#3023](https://github.com/diegosouzapw/OmniRoute/issues/3023))
 - **dashboard:** "Import from /models" now works for no-auth providers (e.g. OpenCode Free) — the button used to silently no-op because no-auth providers have no connection row, so `handleImportModels` returned early and the models route 404'd. The route now serves the provider's model catalog when called with a no-auth provider id, and the dashboard falls back to the provider id when there is no connection. ([#3047](https://github.com/diegosouzapw/OmniRoute/issues/3047))