…63925)

This change follows
https://github.com/sourcegraph/sourcegraph/pull/63858 by making the Cody
Access APIs _read_ from the Enterprise Portal database, instead of
dotcomdb, using the data that we sync from dotcomdb into Enterprise
Portal.

As part of this, I also expanded the existing "compatibility" test suite
that compares the result of our dotcomdb queries against the existing
GraphQL resolvers in dotcom to also compare the results of our new Cody
Access APIs, to validate that they return the same access.

> [!WARNING]
> There is one behavioural change, which is that hashes of _expired
licenses_ will no longer be valid as access tokens. This shouldn't be an
issue if customers use zero-config (implied access token from their
license key) - I will do some outreach before rolling this out.

Subsequent PRs will implement write APIs.


Part of https://linear.app/sourcegraph/issue/CORE-218
Part of https://linear.app/sourcegraph/issue/CORE-160

## Test plan

Integration and unit tests at various layers

Implements the only Cody Access write API we have right now, the ability
to apply overrides to Cody Gateway rate limits, which we'll have in
Enterprise Portal with
https://github.com/sourcegraph/sourcegraph/pull/63858

A lot of the diff is a new generated mock for the Cody Access store so
that we can write some simple unit tests.

With this addition, all initially proposed Cody Gateway access APIs are
implemented.

Part of https://linear.app/sourcegraph/issue/CORE-218
Closes https://linear.app/sourcegraph/issue/CORE-160

## Test plan

Unit and existing integration tests

…tal (#64090)

Upgrades the self-contained Cody Gateway modal to only depend on
Enterprise Portal to read/write Cody Gateway access.

I also made some minor tweaks to parsing empty form inputs, and also
made the "Cody Gateway access token" collapsed by default, with warnings
to discourage its use (opted not to remove entirely since it may be
useful for dev/debugging)

Depends on:

- https://github.com/sourcegraph/sourcegraph/pull/63926 
- https://github.com/sourcegraph/sourcegraph/pull/63925 
- https://github.com/sourcegraph/sourcegraph/pull/63858 

Closes https://linear.app/sourcegraph/issue/CORE-218

## Test plan

```
sg start dotcom
```

Edit the Cody Gateway access stuff, toggling it up and down.
Cross-reference with the `enterprise_portal_cody_gateway_access` table.

…e portal DB (#63927)

This change follows
https://github.com/sourcegraph/sourcegraph/pull/63858 by making the
existing subscriptions APIs _read_ from the Enterprise Portal database,
instead of dotcomdb, using the data that we sync from dotcomdb into
Enterprise Portal.

Part of https://linear.app/sourcegraph/issue/CORE-156
Part of https://linear.app/sourcegraph/issue/CORE-158

## Test plan

Updated unit and integration tests

#63959)

This change follows
https://github.com/sourcegraph/sourcegraph/pull/63858 by making the
_all_ subscriptions APIs read and write to the Enterprise Portal
database, instead of dotcomdb, using the data that we sync from dotcomdb
into Enterprise Portal.

With this PR, all initially proposed subscriptions APIs are at least
partially implemented.

Uses hexops/valast#27 for custom `autogold`
rendering of `utctime.Time`

Closes https://linear.app/sourcegraph/issue/CORE-156
Part of https://linear.app/sourcegraph/issue/CORE-158

## Test plan

- [x] Unit tests on API level
- [x] Adapters unit testing
- [x] Simple E2E test:
https://github.com/sourcegraph/sourcegraph/pull/64057