Pluggable AI providers, relay credit system, picker UX overhaul

Captures roughly forty version bumps (v0.2.6 → v0.2.47) of work that
accumulated without commits.

- Pluggable provider system under server/providers/: gemini, anthropic,
  openai, openai-compatible, ollama, whisper-compatible, relay. Mix and
  match transcription + analysis per request via the picker UI.
- Relay backend integration. Hardcoded relay URL in server/relay-default.js
  (operator-controlled at build time, not user-configurable). New
  /api/relay/{status,policy} endpoints proxy to the relay; balance pings
  populate a cached credit display.
- Per-install identity in server/install-id.js for relay credit accounting.
  Sent to the relay as X-Recap-Install-Id; persists across upgrades, lost
  on a full uninstall + reinstall. Not surfaced in the UI.
- Admin login gate (server/admin-auth.js + setAdminPassword action). Scrypt
  password hash + HMAC-signed session cookie.
- Entitlement scheme rename: pro / max (each paired with subscriptions and
  relay_pro / relay_max), replacing the misleading "core" entitlement
  that conflicted with the user-facing "Core" tier name.
- Activation screen: dynamic credit count pulled from /api/relay/policy,
  "Skip — use free mode" button, accurate paid-feature list.
- Top toolbar: inline credit-balance pill (or "BYO configured" fallback),
  Upgrade + "I have a key" buttons.
- Picker UI: per-provider sections with Save/Test/Delete buttons, sections
  collapsible by chevron, default-collapsed unless currently selected,
  "Use comped credits (reset to relay)" link when the user has strayed,
  green hint under inputs whose values are server-configured.
- Activity log: chevron-collapsible groups per video, refresh-survival via
  localStorage + a 500-entry server-side buffer, explicit Clear button.
- YouTube captions fast-path with user toggle (skips audio download + AI
  transcription when captions are available — uncheck for speaker labels).
- Cancel button: AbortController plumbed through every provider SDK call;
  retryAPI short-circuits on AbortError; cancellation events surface in
  the activity log instead of silent retries.
- Long-video analysis: auto-coalesce transcript entries before building the
  analysis prompt so local-model context windows (32k-ish) don't overflow.
  Original entries preserved for transcript display via an index map; the
  analyzer sees a coarser view but click-to-seek timestamps stay precise.
- StartOS action grouping (Setup / AI Providers) so the actions list is
  navigable.
- Manifest description rewritten to reflect multi-provider support and
  free-tier relay credits.
- Smaller fixes: summarize-button enablement no longer requires a Gemini
  key when other providers are configured; analysis fallback chain handles
  context-length and 503 capacity errors; single-segment expansion for
  providers that don't return per-segment timestamps (Parakeet et al.);
  many other UX polish items.

startos/actions/setOllamaUrl.ts

@@ -0,0 +1,81 @@
+import { sdk } from '../sdk'
+import { configFile } from '../file-models/config.json'
+
+const { InputSpec, Value } = sdk
+
+// Standard Ollama port. Hardcoded because Ollama upstream uses 11434
+// universally — its StartOS package preserves this. If a future
+// release changes the port we can swap to a runtime
+// sdk.serviceInterface.get(...) lookup against ollama's exposed
+// interface, but for now hardcode + override-on-mismatch is simpler
+// and avoids a guess at the interface ID.
+const OLLAMA_DEFAULT_PORT = 11434
+
+const inputSpec = InputSpec.of({
+  ollama_base_url: Value.text({
+    name: 'Ollama Base URL',
+    description:
+      'URL of your Ollama server. If you have the Ollama StartOS package installed on this server, this field is pre-populated automatically. Override only if you want to point at a different Ollama instance (e.g. on another machine: http://192.168.1.10:11434).',
+    required: false,
+    default: 'http://localhost:11434',
+    minLength: 0,
+    maxLength: 256,
+    patterns: [
+      {
+        regex: '^(https?://.+)?$',
+        description: 'Must be empty or start with http:// or https://',
+      },
+    ],
+  }),
+})
+
+// Best-effort detection of an Ollama instance running on this same
+// StartOS server. StartOS exposes every package on its own internal
+// `<package-id>.startos` hostname, reachable from any other package's
+// container without explicit networking config (per the Service
+// Packaging docs). Returns the URL when ollama is installed, null
+// otherwise.
+async function detectStartOsOllamaUrl(effects: any): Promise<string | null> {
+  try {
+    const check = await sdk.checkDependencies(effects, ['ollama'])
+    if (!check.installedSatisfied('ollama')) return null
+    return `http://ollama.startos:${OLLAMA_DEFAULT_PORT}`
+  } catch {
+    return null
+  }
+}
+
+export const setOllamaUrl = sdk.Action.withInput(
+  'set-ollama-url',
+
+  async ({ effects }) => ({
+    name: 'Set Ollama Server URL',
+    description:
+      'Configure where to reach a local Ollama server for topic analysis. No API key required (Ollama runs locally). Does not transcribe audio. Auto-pre-populates if the Ollama StartOS package is installed on this server.',
+    warning: null,
+    allowedStatuses: 'any',
+    group: 'AI Providers',
+    visibility: 'enabled',
+  }),
+
+  inputSpec,
+
+  async ({ effects }) => {
+    const config = await configFile.read().once()
+    // If the user has already set a value, respect it — don't
+    // overwrite a manual override on every action open.
+    if (config?.ollama_base_url) {
+      return { ollama_base_url: config.ollama_base_url }
+    }
+    const auto = await detectStartOsOllamaUrl(effects)
+    if (auto) return { ollama_base_url: auto }
+    return { ollama_base_url: 'http://localhost:11434' }
+  },
+
+  async ({ effects, input }) => {
+    await configFile.merge(effects, {
+      ollama_base_url: (input.ollama_base_url || '').trim(),
+    })
+    return null
+  },
+)