feat: add searxng web-search provider, openrouter cost balance UI, offline scripts; update source-launch and docs

docs/config-catalog.md

@@ -1293,6 +1293,28 @@ export interface Config {
 
 Source: [`packages/feedback/message-feedback/src/index.ts:49`](../packages/feedback/message-feedback/src/index.ts)
 
+<a id="deepseek-aidsh-openrouter-usage"></a>
+
+## `@deepseek-ai/dsh-openrouter-usage`
+
+```ts config-catalog
+/** Plugin config (all optional — the service fills env-var and constant defaults). */
+export interface Config {
+  /** Credential reference resolved per refresh; defaults to `OPENROUTER_API_KEY`. */
+  apiKeyEnv?: string
+  /** OpenRouter API root; `/models` and `/auth/key` are appended. */
+  baseURL?: string
+  /** Whether periodic pricing/balance sync runs. Defaults to true. */
+  syncEnabled?: boolean
+  /** Pricing-table refresh interval, ms. Defaults to 6h. */
+  pricingRefreshMs?: number
+  /** Balance refresh interval, ms. Defaults to 60s. */
+  balanceRefreshMs?: number
+}
+```
+
+Source: [`packages/llm/openrouter-usage/src/index.ts:48`](../packages/llm/openrouter-usage/src/index.ts)
+
 <a id="deepseek-aidsh-permission-presets"></a>
 
 ## `@deepseek-ai/dsh-permission-presets`
@@ -2991,6 +3013,28 @@ export interface Config {
 
 Source: [`packages/web/web-search-perplexity/src/index.ts:32`](../packages/web/web-search-perplexity/src/index.ts)
 
+<a id="deepseek-aidsh-web-search-searxng"></a>
+
+## `@deepseek-ai/dsh-web-search-searxng`
+
+Requires: `web`
+
+```ts config-catalog
+/** Plugin config. `baseURL` is optional in the schema so an omitted value
+ * surfaces as an unavailable provider (the seam's `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`)
+ * rather than failing boot; `apply` fills constant defaults. */
+export interface Config {
+  /** SearXNG instance base; `/search` is appended. Empty/unparseable makes the provider unavailable. */
+  baseURL?: string
+  /** SearXNG `language` to request. Defaults to `auto`. */
+  language?: string
+  /** SearXNG `time_range` recency filter. Omitted = no filter. */
+  timeRange?: 'day' | 'week' | 'month' | 'year'
+}
+```
+
+Source: [`packages/web/web-search-searxng/src/index.ts:40`](../packages/web/web-search-searxng/src/index.ts)
+
 <a id="deepseek-aidsh-workflow-worker-thread"></a>
 
 ## `@deepseek-ai/dsh-workflow-worker-thread`
@@ -3044,6 +3088,7 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co
 - `@deepseek-ai/dsh-client-ui-layout` ([`packages/client/ui-layout/src/index.ts`](../packages/client/ui-layout/src/index.ts))
 - `@deepseek-ai/dsh-client-ui-message-feedback` ([`packages/client/ui-message-feedback/src/index.ts`](../packages/client/ui-message-feedback/src/index.ts))
 - `@deepseek-ai/dsh-client-ui-model-selection` ([`packages/client/ui-model-selection/src/index.ts`](../packages/client/ui-model-selection/src/index.ts))
+- `@deepseek-ai/dsh-client-ui-openrouter-usage` ([`packages/client/ui-openrouter-usage/src/index.ts`](../packages/client/ui-openrouter-usage/src/index.ts))
 - `@deepseek-ai/dsh-client-ui-permission-presets` ([`packages/client/ui-permission-presets/src/index.ts`](../packages/client/ui-permission-presets/src/index.ts))
 - `@deepseek-ai/dsh-client-ui-plan` ([`packages/client/ui-plan/src/index.ts`](../packages/client/ui-plan/src/index.ts))
 - `@deepseek-ai/dsh-client-ui-settings` ([`packages/client/ui-settings/src/index.ts`](../packages/client/ui-settings/src/index.ts))