feat: Implement CodexLens multi-provider embedding rotation management

- Added functions to get and update CodexLens embedding rotation configuration.
- Introduced functionality to retrieve enabled embedding providers for rotation.
- Created endpoints for managing rotation configuration via API.
- Enhanced dashboard UI to support multi-provider rotation configuration.
- Updated internationalization strings for new rotation features.
- Adjusted CLI commands and embedding manager to support increased concurrency limits.
- Modified hybrid search weights for improved ranking behavior.

ccw/src/templates/dashboard-js/i18n.js

@@ -269,6 +269,28 @@ const i18n = {
     'codexlens.concurrency': 'API Concurrency',
     'codexlens.concurrencyHint': 'Number of parallel API calls (1-32). Higher values speed up indexing but may hit rate limits.',
     'codexlens.concurrencyCustom': 'Custom',
+    'codexlens.rotation': 'Multi-Provider Rotation',
+    'codexlens.rotationDesc': 'Aggregate multiple API providers and keys for parallel embedding generation',
+    'codexlens.rotationEnabled': 'Enable Rotation',
+    'codexlens.rotationStrategy': 'Rotation Strategy',
+    'codexlens.strategyRoundRobin': 'Round Robin',
+    'codexlens.strategyLatencyAware': 'Latency Aware',
+    'codexlens.strategyWeightedRandom': 'Weighted Random',
+    'codexlens.targetModel': 'Target Model',
+    'codexlens.targetModelHint': 'Model name that all providers should support (e.g., qwen3-embedding)',
+    'codexlens.cooldownSeconds': 'Cooldown (seconds)',
+    'codexlens.cooldownHint': 'Default cooldown after rate limit (60s recommended)',
+    'codexlens.rotationProviders': 'Rotation Providers',
+    'codexlens.addProvider': 'Add Provider',
+    'codexlens.noRotationProviders': 'No providers configured for rotation',
+    'codexlens.providerWeight': 'Weight',
+    'codexlens.maxConcurrentPerKey': 'Max Concurrent/Key',
+    'codexlens.useAllKeys': 'Use All Keys',
+    'codexlens.selectKeys': 'Select Keys',
+    'codexlens.configureRotation': 'Configure Rotation',
+    'codexlens.rotationSaved': 'Rotation config saved successfully',
+    'codexlens.rotationDeleted': 'Rotation config deleted',
+    'codexlens.totalEndpoints': 'Total Endpoints',
     'codexlens.fullIndex': 'Full',
     'codexlens.vectorIndex': 'Vector',
     'codexlens.ftsIndex': 'FTS',
@@ -1931,6 +1953,28 @@ const i18n = {
     'codexlens.concurrency': 'API 并发数',
     'codexlens.concurrencyHint': '并行 API 调用数量（1-32）。较高的值可加速索引但可能触发速率限制。',
     'codexlens.concurrencyCustom': '自定义',
+    'codexlens.rotation': '多供应商轮训',
+    'codexlens.rotationDesc': '聚合多个 API 供应商和密钥进行并行嵌入生成',
+    'codexlens.rotationEnabled': '启用轮训',
+    'codexlens.rotationStrategy': '轮训策略',
+    'codexlens.strategyRoundRobin': '轮询',
+    'codexlens.strategyLatencyAware': '延迟感知',
+    'codexlens.strategyWeightedRandom': '加权随机',
+    'codexlens.targetModel': '目标模型',
+    'codexlens.targetModelHint': '所有供应商应支持的模型名称（例如 qwen3-embedding）',
+    'codexlens.cooldownSeconds': '冷却时间（秒）',
+    'codexlens.cooldownHint': '速率限制后的默认冷却时间（推荐 60 秒）',
+    'codexlens.rotationProviders': '轮训供应商',
+    'codexlens.addProvider': '添加供应商',
+    'codexlens.noRotationProviders': '未配置轮训供应商',
+    'codexlens.providerWeight': '权重',
+    'codexlens.maxConcurrentPerKey': '每密钥最大并发',
+    'codexlens.useAllKeys': '使用所有密钥',
+    'codexlens.selectKeys': '选择密钥',
+    'codexlens.configureRotation': '配置轮训',
+    'codexlens.rotationSaved': '轮训配置保存成功',
+    'codexlens.rotationDeleted': '轮训配置已删除',
+    'codexlens.totalEndpoints': '总端点数',
     'codexlens.fullIndex': '全部',
     'codexlens.vectorIndex': '向量',
     'codexlens.ftsIndex': 'FTS',