Route all AI features through the Switchboard gateway

Replace the direct Anthropic and OpenAI integrations with a single
provider that talks to Switchboard, an OpenAI-compatible gateway that
routes each request to the best available model. The app no longer pins
a model id anywhere: it sends switchboard/auto and lets the gateway
choose, then logs which model answered and what it cost.

Routing levers are set per feature in src/lib/ai/routing.ts. Three of
those choices came from measuring against the live gateway:

- category and prefer_free are set explicitly on every request. An API
  key carries its own routing defaults, and anything left unset inherits
  them - drink prompts were being sent to a free coding model.
- Token budgets are generous because the router may pick a reasoning
  model, and reasoning tokens come out of the same max_tokens budget as
  the answer. At 512 tokens a request returned null content; at 4096 the
  same request returned correct JSON.
- No tier lever on text features. tier "cheap" pinned a slow reasoning
  model (42-180s, two timeouts and one truncated response in five
  trials) and tier "frontier" escalated as far as Opus at $0.02 a call,
  while unconstrained routing answered in about a second. Vision keeps
  "frontier", where the accuracy is worth a few tenths of a cent.

Gateway failures are mapped to actionable messages rather than passed
through: a 401 relayed as 401 would read as an expired session and
bounce the user to login, and a 429 would collide with the app's own
rate limiter.

Also collapses the key lookup that was duplicated across ten call sites
into getUserProvider(), which fixes a latent bug where a bare findFirst
with no ordering let different features pick different providers.

Existing claude/openai key rows are ignored at runtime and offered for
removal in Settings, so no migration is needed before deploying.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

This commit is contained in:

2026-08-08 16:41:00 +00:00

parent 7c41b15ecc

commit a0e1619072

31 changed files with 830 additions and 429 deletions

									
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				@@ -64,6 +64,7 @@ services:

				    environment:

				      DATABASE_URL: "postgresql://${POSTGRES_USER:-drinktracker}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB:-drinktracker}"

				      MINIO_ENDPOINT: "minio"

				      SWITCHBOARD_BASE_URL: "${SWITCHBOARD_BASE_URL:-http://192.168.2.11:8787/v1}"

				      WATCHPACK_POLLING: "true"

				    depends_on:

				      db:

Route all AI features through the Switchboard gateway

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