upgrade

Upgrade GreyCat + Frontend

Purpose: Upgrade both ends' dependencies to latest, then lint + test both ends and fix every failure the upgrade surfaces until green:

1. Backend — every @library in project.gcl to latest from get.greycat.io.
2. Frontend — every frontend/package.json dependency to its latest published version (exact-pinned).
3. Verify + fix — backend greycat lint + greycat test; frontend pnpm lint + vp build (+ pnpm test if the project uses Vitest). Fix all lint/type/test failures the upgrade introduced in both back and front, re-running after each fix until everything passes.

Run When: Monthly maintenance, before major releases, on announced breaking changes.

Two tracks — parallelize under ultracode

The backend track (bump @library → greycat install → greycat fmt --mode=check + lint → greycat test → fix loop) and the frontend track (bump package.json → greycat codegen ts → pnpm lint → vp build/pnpm test → fix loop) are largely independent. Under ultracode/ultrathink, dispatch them as two parallel subagents (Task) and reconcile at the end; otherwise run sequentially.

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Libraries

Core: std (required), explorer (dev UI). Other published: ai, algebra, kafka, mqtt, opcua, ftp, ssh, osm, useragent, finance, powerflow, powergrid (successor to powerflow), text_search, fcs, and Pro-licensed ifc, sql, openid.

s3 is not a library — S3 access is part of std (IO). Don't add @library("s3", ...). Resolve each library from its OWN endpoint — don't assume one shared version. The only name quirk: std's URL path is core.

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Backend Step 1: Resolve latest per lib

URL path-name = @library name, except std → core:

latest_version() {           # $1 = @library name
  local path="$1"; [ "$1" = "std" ] && path="core"     # std's URL path is 'core'
  curl -s "https://get.greycat.io/files/${path}/dev/latest" | cut -d'/' -f2
}