## Problem
A user hit `Failed to register development environment session (500)`
when running the RDE (`hexclave dev` / `stack dev`). Removing
`defineStackConfig` from their `stack.config.ts` made it go away.
**Root cause:** the local dashboard evaluates the project's config file
in a plain Node context via `jiti`
([config-file.ts](apps/dashboard/src/lib/remote-development-environment/config-file.ts)).
When the config imports a *value* (e.g. `defineStackConfig`) from a
framework package like `@stackframe/stack` / `@hexclave/next`, jiti
executes the entire SDK — React, `server-only`, Next internals — which
throws in that context. The exception propagated as a bare 500. Dropping
`defineStackConfig` removed the value import, so jiti no longer loaded
the framework.
## Changes
**1. Graceful error (Fix 3)**
`readConfigFile` now wraps the `jiti.import` in try/catch and rethrows a
message pointing at the lightweight import path, instead of a raw 500.
**2. Lightweight `/config` subpath (Fix 1)**
Added a side-effect-free `./config` entrypoint to the framework packages
— `@hexclave/{js,next,react,tanstack-start}/config` — that re-exports
`defineHexclaveConfig` / `defineStackConfig` + the `HexclaveConfig` type
from `@hexclave/shared/config`, with **no framework runtime**. Source of
truth:
[`packages/template/src/config.ts`](packages/template/src/config.ts) +
the export in
[`package-template.json`](packages/template/package-template.json),
propagated to the generated packages via `generate-sdks`.
> Why per-package and not `@hexclave/shared/config`: `@hexclave/shared`
is only a *transitive* dependency from a user's perspective, so
importing from it fails under pnpm strict mode. Users depend on the
framework package directly, so `@hexclave/next/config` always resolves.
This was confirmed empirically — the previous tests that imported
`@hexclave/shared/config` were red.
**3. Docs / prompts / renderer aligned to the new path**
-
[`ai-setup-prompt.ts`](packages/shared/src/ai/unified-prompts/skill-site-prompt-parts/ai-setup-prompt.ts)
+ regenerated `docs-mintlify` (setup.mdx, llms-full.txt, snippets).
- Hand-written
[`hexclave-config.mdx`](docs-mintlify/guides/going-further/hexclave-config.mdx)
and
[`local-vs-cloud-dashboard.mdx`](docs-mintlify/guides/going-further/local-vs-cloud-dashboard.mdx).
(`docs/**` left untouched — legacy.)
- `renderConfigFileContent` (the config file the dashboard/CLI
auto-writes) now emits `import type { HexclaveConfig } from
"<pkg>/config"`. Legacy `@stackframe/*` packages predate the subpath, so
they keep their root import (guarded).
## Behavioral note
Existing config files that import from a package root get their import
line upgraded to `/config` on their next dashboard/CLI sync — a
one-time, harmless rewrite that migrates them onto the safe path. The
github-config-push idempotence test was updated to use the current
`/config` format so it still genuinely verifies "no spurious commit."
## Testing
- 43 unit tests pass across `config-file`, `github-config-push`,
`config-rendering`, `config-authoring`, `local-emulator`. The two
previously-red RDE `define*` tests now pass through jiti via
`@hexclave/next/config` (the real code path), and were made
resolution-stable by rooting their temp dir at the test file instead of
`process.cwd()`.
- Typecheck green on all source-changed packages (shared, cli, js, next,
react, tanstack-start). Lint clean.
- ⚠️ The two e2e suites (`cli.test.ts`, `config-local-emulator.test.ts`)
need backend+DB infra; their snapshot updates are mechanical and
**confirmable only in CI**.
<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Prevents 500s when loading `hexclave.config.ts` by adding a lightweight
`<pkg>/config` entrypoint and showing a clear, actionable error without
leaking framework stacks. Import detection, rendering, CLI, tests, and
docs now default to `/config` (including `@hexclave/tanstack-start`) so
configs load in plain Node contexts.
- **New Features**
- Added `/config` subpaths in `@hexclave/js`, `@hexclave/next`,
`@hexclave/react`, `@hexclave/tanstack-start` (and template)
re-exporting `defineHexclaveConfig`, `defineStackConfig`, and
`HexclaveConfig` with no framework runtime.
- Renderer, CLI, and docs import `HexclaveConfig` from `<pkg>/config`;
legacy `@stackframe/*` keep root imports. Existing config files
auto-upgrade on next dashboard/CLI sync.
- **Bug Fixes**
- Wrapped `jiti` config load with try/catch; capture raw error for
diagnostics and show a concise message pointing to `<pkg>/config` (no
nested framework stack traces).
- Import detection accepts optional `/config` suffix; renderer always
appends `/config` for Hexclave packages and recognizes
`@hexclave/tanstack-start`.
- Tests stabilized by scoping temp dirs to the test file; CLI error
example now references `HexclaveConfig` from `<pkg>/config` for Hexclave
packages.
<sup>Written for commit dfe7d5fee4.
Summary will update on new commits.</sup>
<a
href="https://cubic.dev/pr/hexclave/hexclave/pull/1557?utm_source=github"
target="_blank" rel="noopener noreferrer"
data-no-image-dialog="true"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://cubic.dev/buttons/review-in-cubic-dark.svg"><source
media="(prefers-color-scheme: light)"
srcset="https://cubic.dev/buttons/review-in-cubic-light.svg"><img
alt="Review in cubic"
src="https://cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a>
<!-- End of auto-generated description by cubic. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added lightweight "/config" subpath exports across SDK packages to
enable side-effect-free config authoring in plain Node contexts.
* **Documentation**
* Updated guides and snippets to recommend importing config types and
helpers from the "/config" entrypoint and added example usage.
* **Bug Fixes**
* Improved error messaging when dynamic config imports fail, with
guidance to use the "/config" entrypoint.
* **Tests**
* Adjusted tests and snapshots to expect normalized "/config" import
paths.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
## Summary
**Stacked on [#1475](https://github.com/hexclave/stack-auth/pull/1475)**
(`cl/hexclave-pr1`, the invisible compatibility layer). Diff vs that
base = the actual PR 2 code.
This is **PR 2 of the Stack Auth → Hexclave rebrand: the visible flip**.
Old wire identifiers (cookies, request/response headers, Bearer prefix,
JWT issuers, MCP tool name) keep working indefinitely via PR 1's
dual-accept. This PR flips every user-visible surface — package names
taught in docs, SDK class names in code examples, dashboard setup
snippets, page titles, error messages, email content, CLI binary,
default base URLs, GitHub repo slug, contributor guidance — to the
Hexclave brand.
See [`RENAME-TO-HEXCLAVE.md`](./RENAME-TO-HEXCLAVE.md) → *"PR 2: Rebrand
to Hexclave (visible)"* for the full per-work-area spec.
## What's implemented (per the plan's PR 2 scope)
- **SDK base URLs** flipped: `defaultBaseUrl` and
`defaultAnalyticsBaseUrl` in
[common.ts](packages/template/src/lib/stack-app/apps/implementations/common.ts:127)
→ `https://api.hexclave.com` / `https://r.hexclave.com`. PR 1's
[`getHardcodedFallbackUrls`](packages/stack-shared/src/utils/urls.tsx:199)
table now keys on the Hexclave domain.
- **Domain inventory sweep** (16 subdomains from the plan): every
`api/app/docs/discord/demo/mcp/skill/feedback/test/preview/r/api2/api.staging/idp-jwk-audience/built-with.stack-auth.com`
reference in production code, docs-mintlify, examples, READMEs, and
contributor guidance flipped to `*.hexclave.com`. Carve-outs: PR 1's
intentional JWT issuer dual-accept table in
[tokens.tsx](apps/backend/src/lib/tokens.tsx), the legacy `./docs/`
folder, the `unified-docs-widget` allowlist (deliberately accepts both
during DNS transition), and `url-targets.ts` hosted-component default
(baked into existing customer deploys).
- **`@deprecated` JSDoc** on every `Stack*` public export
([packages/template/src/lib/stack-app/index.ts](packages/template/src/lib/stack-app/index.ts)
+ [packages/template/src/index.ts](packages/template/src/index.ts)) —
`StackClientApp`, `StackServerApp`, `StackAdminApp` + every
constructor/options/JSON type, `StackHandler`, `StackProvider`,
`StackTheme`, `useStackApp`, `defineStackConfig`, `StackConfig`.
Hexclave\* aliases are now canonical.
- **Runtime `console.warn`**
([packages/template/src/internal/deprecation-warning.ts](packages/template/src/internal/deprecation-warning.ts))
— once-per-process when the SDK is loaded from a `@stackframe/*`
artifact. Detection uses the existing
`STACK_COMPILE_TIME_CLIENT_PACKAGE_VERSION_SENTINEL` (rewritten at build
time to e.g. `js @stackframe/stack@2.8.92` or `js
@hexclave/next@1.0.0`); `@hexclave/*` mirror artifacts short-circuit the
warning.
- **Tier 3 data migration**: new idempotent SQL migration
[`20260523000000_rename_internal_project_to_hexclave`](apps/backend/prisma/migrations/20260523000000_rename_internal_project_to_hexclave/migration.sql)
— updates the internal Project `displayName` 'Stack Dashboard' →
'Hexclave Dashboard' and `description` only if both still hold the
pre-rebrand defaults. Operator-renamed projects untouched, missing row
no-ops, re-runs are no-ops. [`seed.ts`](apps/backend/prisma/seed.ts:87)
default flipped. `getSharedEmailConfig("Stack Auth")` → `("Hexclave")`.
- **Tier 4 brand strings** (mechanical sweep, ~340 files):
- Page + OpenAPI titles (Hexclave API / Dashboard / REST API / Webhooks
API / Documentation). OpenAPI `info.description` documents
`X-Hexclave-*` headers as canonical with compat note on `X-Stack-*`.
- `HexclaveAssertionError` message text
([errors.tsx:71](packages/stack-shared/src/utils/errors.tsx:71)) — "an
error in Stack." → "an error in Hexclave."
- Known-error message templates
([known-errors.tsx](packages/stack-shared/src/known-errors.tsx)) flipped
to lead with `x-hexclave-*` + the new `docs.hexclave.com` URL; legacy
`x-stack-*` mentioned as compat aliases. **25 e2e test files updated in
lockstep**.
- Email content: failed-emails-digest body, sendTestEmail recipient (now
`sent-with-hexclave.com`), test-email-recipient default.
- `CHANGELOG.md` title → "Hexclave Changelog".
- `AGENTS.md` env var convention: new vars prefix `HEXCLAVE_` /
`NEXT_PUBLIC_HEXCLAVE_` for Category A/B; legacy `STACK_*` explicitly
noted as accepted via PR 1's dual-read.
- **CLI / init wizard**:
- Every dashboard setup snippet, init-stack template, and docs-mintlify
page teaches `npx @hexclave/cli@latest init` (was
`@stackframe/stack-cli`).
[setup-page.tsx](apps/dashboard/src/app/(main)/(protected)/projects/[projectId]/(overview)/setup-page.tsx)
+
[link-existing-onboarding](apps/dashboard/src/app/(main)/(protected)/(outside-dashboard)/new-project/page-client-parts/link-existing-onboarding.tsx).
- [init-stack](packages/init-stack/src/index.ts:634)
`STACK_*_INSTALL_PACKAGE_NAME_OVERRIDE` defaults flipped to
`@hexclave/*`.
- Generated `stack/client.ts` / `stack/server.ts` import from
`@hexclave/next` and reference `HexclaveClientApp` /
`HexclaveServerApp`.
- Internal `StackAuthKeys` dashboard component renamed to
`HexclaveKeys`.
- **docs-mintlify rewrite** (legacy `./docs/` intentionally untouched
per scoping decision):
- **78 MDX files swept**.
`@stackframe/{react,stack,js,tanstack-start,...}` →
`@hexclave/{react,stack,js,...}` in install snippets and code blocks;
`Stack*` SDK class names → `Hexclave*` in all code examples; 'Stack
Auth' brand phrase → 'Hexclave'.
- `openapi/{server,admin,client,webhooks}.json` titles → 'Hexclave REST
API' / 'Hexclave Webhooks API'.
- **Generators flipped before regeneration**:
-
[`packages/stack-shared/src/helpers/init-prompt.ts`](packages/stack-shared/src/helpers/init-prompt.ts),
[`/ai/prompts.ts`](packages/stack-shared/src/ai/prompts.ts),
[`apps/backend/src/lib/ai/prompts.ts`](apps/backend/src/lib/ai/prompts.ts),
[`apps/backend/src/lib/ai/tools/create-email-{template,draft}.ts`](apps/backend/src/lib/ai/tools/create-email-template.ts),
[`apps/skills/src/app/route.ts`](apps/skills/src/app/route.ts) (taught
MCP tool → `ask_hexclave` with compat note; CLI binary teach →
`hexclave`),
[`docs-mintlify/snippets/home-prompt-island.jsx`](docs-mintlify/snippets/home-prompt-island.jsx),
[`packages/template/README.md`](packages/template/README.md) +
integrations/convex/component/README.md.
- `generate-sdks` propagated changes to `packages/{react,stack,js}`.
- **OpenAPI dual-documentation**:
[`apps/backend/src/app/api/latest/route.ts`](apps/backend/src/app/api/latest/route.ts)
now lists `X-Hexclave-*` headers as primary documented schemas with
`X-Stack-*` duplicates marked `.optional()` (both accepted at runtime by
PR 1's normalize-at-proxy shim).
- **`@stackframe/emails` virtual module**: dual-aliased to
`@hexclave/emails` at the bundler boundary
([email-rendering.tsx:89](apps/backend/src/lib/email-rendering.tsx:89)).
Stored email templates continue to import from either name; new
AI-generated templates and the system prompt teach `@hexclave/emails`.
- **Tier 2 mirror-publish wiring** (new this PR, lays the groundwork for
`@hexclave/*` first publish):
-
[`scripts/rewrite-packages-to-hexclave.ts`](scripts/rewrite-packages-to-hexclave.ts)
— rewrites 9 publishable `@stackframe/*` → `@hexclave/*` `package.json`
files (reads `HEXCLAVE_VERSION` env or `--version=` flag), pins
cross-deps to the shared `@hexclave` version, registers `hexclave` bin
alongside `stack` for `@hexclave/cli`.
-
[`.github/workflows/npm-publish.yaml`](.github/workflows/npm-publish.yaml)
appended with rewrite-then-republish step. `pnpm publish` skips
already-on-npm versions so reruns are safe.
- **Sender email domain**: `noreply@stackframe.co` →
`noreply@sent-with-hexclave.com` (the dedicated transactional-sender
domain split per the plan, to isolate bulk deliverability from
`hexclave.com` reputation); `security@` / `team@stack-auth.com` inbound
mailboxes → `@hexclave.com`.
- **Self-host docs**: docker network / container names in the bash
examples flipped from `stack-auth` to `hexclave` (`hexclave-postgres`,
`hexclave-clickhouse`, `hexclave.env`). The docker image tag
`stackauth/server:latest` stays per the plan's locked decision.
- **GitHub repo slug**: `hexclave/stack-auth` → `hexclave/hexclave` in
every `package.json` `repository` field, README link, CHANGELOG
raw-asset URL.
## Carve-outs (deliberately untouched)
-
**[`apps/backend/src/lib/tokens.tsx`](apps/backend/src/lib/tokens.tsx)**
JWT issuer dual-accept table — PR 1 intentional infrastructure, kept
indefinitely.
- **Legacy `./docs/` folder** — per scoping decision (only
`docs-mintlify/` rewritten).
- **`unified-docs-widget` hostname allowlist** — accepts both
`.hexclave.com` (canonical) and `.stack-auth.com` (transition window)
for DNS rollout.
- **`url-targets.ts`** hosted-domain default
`.built-with-stack-auth.com` — wire identifier baked into existing
customer deploys; indefinite read-fallback.
- **Binary visual assets** (logos, favicons, OG images, README
screenshots) — out of scope for this PR. Need design work; tracked
separately.
## Verification
- **`pnpm typecheck`** on
`packages/{template,stack-shared,react,stack,js}` + `apps/dashboard`:
**all green**. The remaining backend / e-commerce-demo typecheck errors
are pre-existing (Prisma codegen output +
`./generated/api-versions.json` not present in fresh worktrees without
`pnpm run codegen-prisma` + a live DB) and unrelated to this diff.
- **`pnpm lint`** on the same 6 packages: all green.
- **Final grep** for residual `Stack Auth` / `stack-auth.com` /
`@stackframe/stack-cli@latest` references: zero outside the intentional
carve-outs above.
- **25 e2e test files updated in lockstep** with the known-error message
changes (asserted strings flipped to match the new x-hexclave-* +
compat-note messages).
## Deploy blockers (ops sequencing before this rebrand goes live)
This PR is code-complete, but the rebrand's visible surfaces (SDK
default URLs, dashboard links, npm READMEs, REST error messages, runtime
deprecation warning) all point at `*.hexclave.com` / `@hexclave/*`
resources that don't exist yet. None of these are fixable from a PR —
they're ops/registrar/npm work that has to be sequenced before merging
this to a release tag.
Suggested ordering, hardest blockers first:
### Tier 1 — required before customer-facing deploy (everything below
this line *will visibly break customers on day 1* if skipped)
1. **DNS + TLS for `api.hexclave.com` + `api1./api2.hexclave.com`** →
must point at the same backend that serves `api.stack-auth.com` (or a
backend that mirrors PR 1's dual-accept). The SDK's new `defaultBaseUrl`
is `https://api.hexclave.com`; every customer that relied on the old
default and upgrades to a post-PR2 SDK build sends API requests here.
Until this resolves, every default-config customer's API call NXDOMAINs.
2. **DNS for `app.hexclave.com`** → the dashboard. Referenced in the
SDK's default-error messages ("Please create a project on the Hexclave
dashboard at https://app.hexclave.com"), the init-stack flow's
`wizard-congrats` redirect, and the OAuth dashboard handoff.
3. **DNS for `docs.hexclave.com`** + Mintlify deploy → the SDK runtime
deprecation warning (`https://docs.hexclave.com/migration`), every
README, every "Learn more" link in the dashboard, and every REST API
error body (`/api/overview#authentication`) points here. The MDX is in
this PR; the docs build target needs DNS.
4. **DNS for `mcp.hexclave.com`** → the MCP server endpoint that every
taught agent integration (`claude mcp add ...`, `cursor`, `codex`,
`vscode`) registers. Until this resolves, every `npx
@hexclave/cli@latest init` MCP-registration step fails.
5. **Reserve the `@hexclave` npm scope + set repo variable
`HEXCLAVE_VERSION`** → the mirror-publish step in
`.github/workflows/npm-publish.yaml` is gated on this variable. Without
it, the entire taught onboarding command `npx @hexclave/cli@latest init`
404s from the npm registry, *and* every README that says "install
`@hexclave/next`" leads to install failure. Pick the initial version
intentionally (`1.0.0` or aligned to `@stackframe/stack`); don't accept
a silent default.
### Tier 2 — required before announcing the rebrand publicly (lookalike
or low-traffic surfaces, but visibly broken)
6. **DNS for `r.hexclave.com`** → the analytics beacon
`defaultAnalyticsBaseUrl`. Silent failure if missing (analytics drops),
but should land alongside Tier 1.
7. **Register `sent-with-hexclave.com` + full email auth (SPF / DKIM /
DMARC)** → the new default sender domain for shared-sender transactional
emails. Without it the dashboard "send test email" path emits bounces,
and shared-sender flows (`getSharedEmailConfig("Hexclave")`) deliver to
spam at best.
8. **MX + SPF / DMARC for `hexclave.com`** → `team@hexclave.com` and
`security@hexclave.com` mailboxes. The security disclosure mailbox is
referenced in [`.github/SECURITY.md`](.github/SECURITY.md);
`team@hexclave.com` is the actual recipient of internal feedback emails
sent at runtime by
[`apps/backend/src/lib/internal-feedback-emails.tsx`](apps/backend/src/lib/internal-feedback-emails.tsx).
Today, every runtime feedback email bounces.
9. **DNS for `skill.hexclave.com`** → the canonical AI-agent skill fetch
URL (the agent bootstrap pivot). Without it, the entire "agent downloads
`SKILL.md` from a known URL" flow taught in
[`packages/stack-shared/src/helpers/init-prompt.ts`](packages/stack-shared/src/helpers/init-prompt.ts)
fails.
10. **Create `github.com/hexclave/hexclave` as a public repo** (even as
a redirect to `hexclave/stack-auth`) **OR** rewrite every `package.json`
`"repository"` field + dashboard footer "view on GitHub" link to point
at `hexclave/stack-auth` (which already exists). Currently every npm
package page's "Repository" link is dead, and the dashboard's GitHub
button + dev-tool repo link are dead.
### Tier 3 — broken but low-visibility / low-traffic
11. **DNS for `discord.hexclave.com`** → Discord invite redirect, used
in every README's chip and the dashboard footer.
12. **DNS for `demo.hexclave.com`** → "✨ Demo" badge in every npm
package README. Broken-image badge on the package page.
13. **DNS + TLS for `built-with-hexclave.com`** → optional
hosted-handler domain (the default reverted to
`.built-with-stack-auth.com` in this PR's carve-outs, so this only
matters for projects that manually flip).
## Other follow-ups (not deploy-blocking)
- **E2E snapshot regen across the full suite** for the dual-emitted
`x-hexclave-*` response headers (PR 1 follow-up; `vitest -u` in CI
absorbs).
- **Binary visual assets** — logos, favicons, OG images, README
screenshots; need design pass.
- **Backend OpenAPI fumadocs regen** in CI flow — the JSON files in
`docs-mintlify/openapi/` are committed but regen runs in CI. Verify the
workflow that does this still works against the post-PR2 source.
- **Backend typecheck infra debt** — needs `codegen-prisma` +
`codegen-route-info` to clear; pre-existing, unaffected by this PR.
## Test plan
- [ ] CI runs full e2e suite (with `vitest -u` to absorb residual
snapshot deltas, then committed back).
- [ ] Spot-check: new `@hexclave/cli init` (once published) generates
`hexclave.config.ts` and works against a fresh project.
- [ ] Spot-check: existing customer with `@stackframe/stack` import sees
the once-per-process `console.warn` recommending `@hexclave/next` on SDK
init.
- [ ] Manual: dashboard setup page renders the `npx @hexclave/cli@latest
init` snippet and the `x-hexclave-publishable-client-key` API header in
the curl example.
- [ ] Manual: a fresh `pnpm run prisma migrate` against a clean DB sets
the internal project displayName to 'Hexclave Dashboard'.
---------
Co-authored-by: Konstantin Wohlwend <n2d4xc@gmail.com>
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
## Summary
- Adds the generated `@stackframe/tanstack-start` workspace package
registration.
- Adds TanStack Start platform macros/dependencies to the SDK template
and generator.
- Adds TanStack Start cookie/token-store support plus the handler SSR
guard needed by Start.
## Scope
This intentionally excludes Dashboard V2 routes, hooks, components, app
shell logic, and dashboard API type additions. Those stay in the
existing dashboard PR/branch.
## Validation
- `pnpm install --lockfile-only --ignore-scripts`
- `pnpm install --ignore-scripts`
- `pnpm -C packages/template lint
src/components-page/stack-handler-client.tsx src/lib/cookie.ts
src/lib/stack-app/apps/implementations/client-app-impl.ts`
Package typecheck was attempted with `pnpm -C packages/template
typecheck`, but the clean worktree lacks generated package declaration
outputs for workspace dependencies such as `@stackframe/stack-shared`
and `@stackframe/stack-ui`. Per repo instructions, package
builds/codegen are not run by agents.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* TanStack Start integration: published SDK package, example demo app,
dashboard onboarding flow, framework-aware CTAs/docs, and a
TanStack-specific provider for client-only auth routes.
* Improved client/server auth: safer runtime guards and consistent
cookie/token-store behavior across SSR and client.
* **Documentation**
* New Integrations guide and expanded getting-started/setup docs with
TanStack Start examples and env/key guidance.
* **Chores**
* Template, build, tooling, and demo config updates to support the new
platform.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
