Adds an optional dbcrypt wrapper around gitsshkeys.private_key. The
column is encrypted on insert and update through enterprise/dbcrypt when
external token encryption is configured, and decrypted on read.
A new private_key_key_id column references
dbcrypt_keys(active_key_digest) so revocation safety is enforced by the
existing foreign key. Rows with a NULL key_id stay plaintext and remain
readable. Existing plaintext rows can be backfilled by running `coder
server dbcrypt rotate`.
Generated with assistance from Coder Agents.
## Summary
Fixes all 9 Windows CI test failures caused by the mise CI refactor
(`fe257666d7`, PR #25727).
### Root cause
`jdx/mise-action` exports `Path` (Windows convention) via `GITHUB_ENV`.
Bash on Windows maintains its own `PATH`. When Go's `os.Environ()`
returns both, `cmd.exe` subprocesses non-deterministically pick the
MSYS-translated `PATH` (forward slashes), causing Windows executables
(`printf`, `powershell.exe`, `cmd.exe`) to be unresolvable.
These failures only appeared on `main` (where `-count=1` forces real
test execution) and were masked on PRs by Go test cache.
### Fixes applied
**CI (`setup-mise` action)**:
- Write both `Path` and `PATH` to `GITHUB_ENV` with Git usr/bin
prepended
**Code (`cli/root.go`)**:
- Add `appendAndDedupEnv` helper that deduplicates case-insensitive env
vars on Windows, preferring native Windows paths (backslashes) over MSYS
paths
**Code (`cli/configssh_windows.go`)**:
- Use absolute paths for `powershell.exe` and `cmd.exe` in the SSH
config `Match exec` escape function, avoiding PATH resolution entirely
**Tests**:
- Switch `--header-command` tests from `printf` to `echo` (cmd.exe
builtin) for reliable cross-platform execution
- Add env dedup in `Test_sshConfigMatchExecEscape` for subprocess PATH
consistency
Fixescoder/internal#1556, coder/internal#1558, coder/internal#1559
> 🤖 Generated by Coder agent, will be reviewed by @mafredri. 🏂🏻
Copilot is the only AI provider type that could not be added through the `/ai/settings` UI. The aibridge runtime and the env-var seeding path already supported it, but the runtime CRUD API rejected `type=copilot` and the UI omitted it entirely. The root cause is that Copilot's auth model (a per-request GitHub OAuth token, with no pre-shared key) does not fit the credential-centric add-provider flow that every other provider uses.
## Backend
Allow `type=copilot` in `CreateAIProviderRequest.Validate()`, and reject `api_keys` for Copilot on both create (validation) and update (handler sentinel), mirroring the existing Bedrock guards. Copilot carries no stored credential.
## Frontend
Add Copilot to the provider type picker (with the `github-copilot.svg` icon) and give the form a credential-free branch: name, display name, and a free-text endpoint defaulting to `https://api.business.githubcopilot.com`, with copy explaining that authentication happens via the user's GitHub token at request time. Copilot maps to the distinct `copilot` wire type rather than collapsing to `openai`, and the edit flow recovers it correctly.
The endpoint stays required with a business-tier default; users on the individual or enterprise endpoints edit the field.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Implements https://linear.app/codercom/issue/AIGOV-285
Follow the structure established in
https://github.com/coder/coder/pull/25203
## Summary
Adds the `user_ai_budget_overrides` table and CRUD API at
`/api/v2/users/{user}/ai/budget`. An override sets a custom per-user
spend cap that supersedes group-budget resolution, attributing spend to
a specific group.
## Schema
```sql
CREATE TABLE user_ai_budget_overrides (
user_id UUID PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
group_id UUID NOT NULL REFERENCES groups(id) ON DELETE CASCADE,
spend_limit_micros BIGINT NOT NULL CHECK (spend_limit_micros >= 0),
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
```
## Membership lifecycle
The membership invariant — a user must be a member of the attributed
group, including when that group is "Everyone" — would naturally be
expressed as a composite FK on `(user_id, group_id) →
group_members_expanded(user_id, group_id)`. PostgreSQL doesn't allow
foreign keys to reference views, so enforcement is split across two
mechanisms:
- **Write-time check.** A CHECK constraint on the table
(`user_ai_budget_overrides_must_be_group_member`) calls a `STABLE`
function `is_group_member(user_id, group_id)` that queries
`group_members_expanded`. The view surfaces both regular group
memberships and the implicit "Everyone" group memberships from
`organization_members`. Any INSERT or UPDATE that violates the predicate
is rejected with a Postgres `check_violation`, which the handler maps to
a 400. `is_group_member` is defined as a general predicate, reusable by
any future table that needs the same check.
- **Cascade on removal.** Two `BEFORE DELETE` triggers handle membership
loss:
- `trigger_delete_user_ai_budget_overrides_on_group_member_delete` on
`group_members` — covers regular group removals (admin action, OIDC
sync).
- `trigger_delete_user_ai_budget_overrides_on_org_member_delete` on
`organization_members` — covers the "Everyone" group, whose membership
lives in `organization_members`.
The single-column FKs on `users(id)` and `groups(id)` remain to cascade
on user or group deletion (those paths don't pass through
`group_members`).
## Authorization
The dbauthz layer gates each operation against the `User` and (for
writes) `Group` resources:
| Operation | User resource | Group resource |
|-----------|----------------|----------------|
| `GET` | `ActionRead` | — |
| `PUT` | `ActionUpdate` | `ActionUpdate` |
| `DELETE` | `ActionUpdate` | `ActionUpdate` |
For `DELETE`, the dbauthz layer fetches the existing override first to
learn the attributed `group_id`, then runs both checks.
### Role matrix
| Role | GET | PUT | DELETE |
|--------------|-----|-----|--------|
| Owner | ✅ | ✅ | ✅ |
| UserAdmin | ✅ | ✅ | ✅ |
| OrgAdmin | ✅ | ❌ | ❌ |
| OrgUserAdmin | ✅ | ❌ | ❌ |
Internal discussion:
https://codercom.slack.com/archives/C096PFVBZKN/p1779392747885359
## Audit logs
Audit logs will be addressed in a follow-up PR.
_Disclosure: created with Coder Agents._
When providers are disabled, we should serve a sentinel error so the
requesting client (Claude Code, Coder Agents, etc) is informed. Coder
Agents can also conditionalize its display to show a helpful error
message.
---------
Signed-off-by: Danny Kopping <danny@coder.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add metrics for `aibridged` and `aibridgeproxyd`'s provider statuses. AI providers can be modified, and possibly misconfigured, at runtime. These metrics help operators understand the state of these provider definitions in case unexpected behaviour is observed.
Refactors the `aibridgeproxyd` provider reload mechanism which was unnecessarily complex.
Also ensures that providers are evaluated on each CONNECT request to prevent interception of requests to (newly) disabled providers; in this case the requests will passthrough unencrypted, by design.
Fake agents now fetch their manifest, spawn a single per-agent metadata
goroutine, and emit batched BatchUpdateMetadata calls with 3072-byte
base64 payloads so scaletest runs mirror the load shape of real agents.
This matches what the current scaletest workspace template does for
metadata. In the future we can extend the harness here to take in a
config option for the metadata payload size.
---------
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Mux <mux@coder.com>
Previously the in-process aibridge daemon and the enterprise aibridgeproxy daemon both snapshotted their provider routing once at boot. Any `ai_providers` or `ai_provider_keys` mutation required a restart for either to pick it up.
Add an `ai_providers_changed` pubsub channel that the CRUD handlers publish on after Create / Update / Delete. Both daemons subscribe:
- **aibridged** rebuilds its `[]aibridge.Provider` snapshot via `BuildProviders` and swaps it into the pool atomically. Inflight requests keep serving against the bridge they already acquired; new acquires build against the new snapshot. Per-provider construction errors stay scoped to the offending row.
- **aibridgeproxyd** rebuilds its routing snapshot from `GetAIProviders` and swaps the host→provider map atomically. The MITM listener picks up new providers without restart.
DB read for aibridgeproxyd uses the existing `AsAIProviderMetadataReader` subject for routing-only access.
Adds an end-to-end enterprise CLI test to ensure legacy AI provider keys seeded at server startup are encrypted at rest when DBCrypt external token encryption is enabled, preventing regressions related to #25699.
> Partially implemented by Coder Agents, and massaged afterwards by me.
## Summary
Routes chatd model calls backed by concrete AI Provider rows through the
in-process aibridge transport by default, with deployment options to use
direct provider routing when AI Gateway is disabled or chat AI Gateway
routing is disabled.
- Splits model routing into common, direct provider, and AI Gateway
paths behind a single deployment-mode entry point.
- Builds chatd models through explicit request, route, and options data.
Active API key attribution is passed explicitly instead of being hidden
inside generic model construction.
- For AI Gateway BYOK routes, resolves the user's provider key in chatd,
forwards it through provider-specific auth headers, and sets
`X-Coder-AI-Governance-Token` to the `delegated` marker so aibridge
preserves those headers while still stripping Coder-specific metadata.
- Keeps central provider credentials and deployment fallback credentials
out of forwarded provider auth headers, so AI Gateway central policy
remains authoritative.
- Redacts delegated provider auth from default string formatting to
avoid accidental plaintext logging of user BYOK credentials.
- Covers selected chat models, advisor overrides, title and quickgen
paths, subagent overrides, computer use model selection, and an
integration-style chat turn through the aibridge transport path.
- Persists initiating API key IDs on chat and queued user messages,
including subagent child messages, and fails closed for AI
Gateway-routed model builds without an active key.
- Removes unused `api_key_id` indexes while keeping the persistence
columns and foreign keys.
- Keeps the deployment option available through config and env parsing,
but hides it from CLI help and generated docs.
- Stabilizes the subagent poll fallback test so background CreateChat
processing cannot win the state transition under slower CI environments.
## Tests
- `go test ./coderd/x/chatd -run
'TestAIGatewayProviderAuthForUser|TestAIGatewayProviderAuthRedactsFormatting|TestResolveModelRouteForConfigAIGatewayProviderAuth|TestAIGatewayModelForwardsProviderAuth|TestProcessChat_AIGatewayRoutingUsesDelegatedAPIKey|TestAwaitSubagentCompletion'
-count=1`
- `go test ./coderd/aibridged -run
'TestServeHTTP_DelegatedAPIKey|TestServeHTTP_StripCoderToken' -count=1`
- `git diff --check HEAD~1..HEAD`
- `make lint`
> Mux working on behalf of Mike.
## Problem
Two related symptoms of the same architectural issue: the `dbcrypt`
wrapper is installed inside `enterprise/coderd.New`, so any access to
`options.Database` that happens before `newAPI` runs bypasses
encryption.
**Symptom 1 (reads):** Provider keys added via the admin UI are
encrypted at rest. `BuildProviders` was running *before* `newAPI`,
against the unwrapped store, so the ciphertext was read as-is and shoved
into the keypool as the upstream credential. Anthropic/OpenAI reject it,
and the interception log shows:
```
coderd.aibridged.pool: interception failed ... error="all configured keys failed authentication"
credential_kind=centralized credential_hint=PaPb...4A== credential_length=184
```
**Symptom 2 (writes):** `SeedAIProvidersFromEnv` was also running before
`newAPI`, against the unwrapped store, so env-derived keys
(`CODER_AIBRIDGE_OPENAI_KEY`, indexed `CODER_AIBRIDGE_PROVIDER_<N>_KEY`,
etc.) landed in `ai_provider_keys` as plaintext with `ApiKeyKeyID =
null` even when `CODER_EXTERNAL_TOKEN_ENCRYPTION_KEYS` was set.
## Fix
Move both `SeedAIProvidersFromEnv` and `BuildProviders` to after
`newAPI`, where `options.Database` is the dbcrypt-wrapped store. Writes
encrypt correctly; reads decrypt correctly.
The enterprise closure (`enterprise/cli/server.go`) runs *inside*
`newAPI` and calls `BuildProviders` for the aibridgeproxyd at that
point. Once the agpl seed moves to after `newAPI`, the proxy on first
boot would see no env-seeded providers. Add a matching seed call inside
the enterprise closure before its `BuildProviders` to cover that case.
Seeding is idempotent, so the agpl-side seed running again post-`newAPI`
is a no-op when the rows already exist.
## Known shortcomings
The clean version of this fix would just inherit `ctx` like every other
startup step and place these calls naturally. It can't, for two reasons
that are both about the surrounding handler architecture rather than
this change:
1. **`dbcrypt` wrapping is positioned inside `newAPI`, not around
`options.Database` at creation.** That's why both seed and build have to
wait until after `newAPI` in the first place. The principled fix is to
install the wrapper at the point the store is created (behind a hook the
enterprise build supplies), so every consumer sees a single
authoritative view and the ordering stops mattering. This would also
collapse the duplicated seed call back to a single site.
2. **The handler's shutdown sequence is not deferred.**
`coderAPICloser.Close()` and the other teardown steps run only if
control reaches the `select` at the bottom of the handler. An early
`return` from anywhere in Phase 1 (e.g. seed/build returning
`context.Canceled` when the user hits ctrl-c during startup) skips that
block and orphans all the goroutines `newAPI` spawned — tailnet workers,
gitsync, telemetry batcher, etc. `goleak` then catches them at package
teardown and `TestServer_TelemetryDisabled_FinalReport` fails. Moving
the shutdown into deferred closers (with a `sync.Once`-guarded close to
avoid double-close from the explicit Phase 2 call) is the principled
fix.
For this PR I took the smallest change that fixes the reported bugs: a
detached context (`context.WithoutCancel(ctx)` + a 30s timeout) at the
seed and build call sites in both the agpl and enterprise paths. It lets
the calls complete even if the user cancels during startup, after which
the handler reaches its shutdown select naturally and tears down through
Phase 2. Both shortcomings above are worth addressing separately.
## Test plan
- `make test RUN=TestServer_TelemetryDisabled_FinalReport` with `-race`;
passes locally with `-count=3`.
- Manually verified on a deployment with
`CODER_EXTERNAL_TOKEN_ENCRYPTION_KEYS` set and env-configured providers:
`ai_provider_keys.api_key_key_id` is populated, `api_key` is base64
ciphertext, and upstream auth succeeds.
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replace the env-based `BuildProviders` with a DB-backed loader. The database is now the single source of truth for runtime provider configuration; env config arrives via `SeedAIProvidersFromEnv` (run at boot) and `BuildProviders` reads it back as `aibridge.Provider` instances. `cli/server.go` and `enterprise/cli/server.go` both call the same path, so aibridged and aibridgeproxyd see the same provider set.
Per-provider `DumpDir` is replaced by a top-level `CODER_AI_GATEWAY_DUMP_DIR` base; each provider's effective dump path is `<base>/<provider name>`.
We weren't stripping the API base (`/api/v2/aibridge`), leading to 404s
when using the in-memory transport.
Signed-off-by: Danny Kopping <danny@coder.com>
Since AI Gateway is now enabled by default, and if the AI Gateway Proxy is enabled too it's possible the server can start without any configured providers. This would previously block startup, which is unacceptable.
In an upstack PR we will handle reloading the providers at runtime, so the server needs to be able to start up even if it can't handle any proxy requests to AI Gateway.
This change was necessitated because if there are providers configured in the environment they need to be seeded _before_ the proxy starts.
In order to allow Coder Agents to use AI Gateway in OSS, we need to rehome the `aibridged`\-related code into the AGPL path.
The HTTP API is only registered under enterprise so will still require the AI Governance Add-on to be present in order to use it, whereas Coder Agents uses an in-memory pipe to the same handlers.
`CODER_AI_GATEWAY_ENABLED` / `CODER_AIBRIDGE_ENABLED` is now being defaulted to `true` now that it will be used by Coder Agents.
If you previously had this value disabled explicitly, that value will persist.
_Disclaimer: implemented by a Coder Agent using Claude Opus 4.7_
Part of the implementation of [RFC: Common AI Provider Configs](https://www.notion.so/coderhq/RFC-Common-AI-Provider-Configs-34bd579be59280ed958feffb82024797) (AIGOV-201).
## Note
This change can cause a previously working installation to fail to start should a conflict exist between the providers configured in the environment & those now migrated to the database.
I'll raise a PR upstack to document this process and workarounds should a startup fail.
## What this PR does
Reconciles environment-derived AI provider configuration with the `ai_providers` table at server startup. The seed runs **before** the aibridged daemon is initialized, so the runtime always reads providers from the database; the legacy `CODER_AIBRIDGE_*` environment variables become a one-shot migration source.
### Behavior
- Concurrent server starts are serialized through a Postgres advisory lock (`LockIDAIProvidersEnvSeed`).
- Missing rows are inserted with an audit entry attributed to the system actor.
- Existing rows whose canonical hash matches the env-derived hash are left alone (the common no-op restart path).
- Existing rows whose canonical hash does **not** match cause server startup to fail with a descriptive error so the operator can explicitly resolve the conflict in either env or DB.
- Soft-deleted rows are NOT resurrected from env; an explicit operator deletion is sticky across restarts.
- Indexed providers whose name conflicts with a legacy env var fail startup with a clear remediation message.
- Unknown provider types (e.g. `copilot`, until the DB enum is widened) are skipped with a log entry rather than failing startup.
### Canonical hashing
The `canonicalAIProvider` shape captures exactly the fields that determine runtime behavior — `type`, `base_url`, and the Bedrock subset of settings (access key, access key secret, region, model, small fast model) — and is hashed with SHA-256. The hash is **computed on demand from the row + env**, never persisted, so the database does not need a new column for it. API keys live in the separate `ai_provider_keys` table and are intentionally excluded from the hash so operators can rotate keys via the API without forcing a server restart.
<details>
<summary>Decision log</summary>
- The hash is intentionally not persisted in the database. The RFC discussed this trade-off; computing on demand keeps the schema minimal and lets the canonical shape evolve without a migration.
- The lock uses an `iota` slot in `coderd/database/lock.go` rather than `GenLockID` so it's stable, easy to audit, and matches the convention used for every other startup lock.
- A bearer-token Anthropic provider whose env vars also set Bedrock metadata but no AWS credentials does NOT store the Bedrock fields. Without credentials the discriminated settings would misrepresent the row as Bedrock auth.
- We deliberately do NOT publish to the `ai_providers_changed` pubsub channel from the seed because the seed completes before any subscriber is started; the follow-up PR introduces that channel.
</details>
Adds options matching new AI Gateway naming.
New options are added as alias for old options. Old options are still
working.
Old options have deprecated message.
No conflict detection was added.
Updated documentation so it mentions only new options. Added note about
old options still working.
> Various AI tools where used to create this PR
<!--
If you have used AI to produce some or all of this PR, please ensure you have read our [AI Contribution guidelines](https://coder.com/docs/about/contributing/AI_CONTRIBUTING) before submitting.
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relates to GRU-18
Adds basic implementation for Workspace Agent Connection Watch and tests.
Missing are handling of logs.
> Mux updated this PR on behalf of Mike.
## Stack Context
This PR is the API test coverage slice in the experimental personal
skills stack. The storage, schema, permissions, API, and SDK
implementation merged in #25363.
Stack order:
1. #25362 personal skill resolver
2. #25363 storage, permissions, API, and SDK
3. #25365 API test coverage
4. #25366 chattool and chatd integration
5. #25066 settings UI and docs
6. #25386 personal skills slash menu
## What?
Adds API and audit tests for personal skill CRUD, validation failures,
limits, authorization, soft-delete cleanup, and audit content tracking.
This PR is now test-only. It does not include migrations, generated
database code, or API implementation changes.
## Why?
The feature touches storage, permissions, and audit behavior. These
tests make the server behavior reviewable and protected without
re-reviewing the implementation that already merged in #25363.
## Validation
- `go test ./coderd -run '^(TestUserSkill|TestPatchUserSkill)' -count=1`
- `go test ./enterprise/coderd -run
'^TestUserSkillAuditDiffTracksContent$' -count=1`
- pre-commit hook via `gt modify --no-edit`
> Mux updated this PR on behalf of Mike.
## Stack Context
This PR is the storage, permissions, API, and SDK layer for experimental
personal skills. #25362 has landed on `main`, so this branch is
restacked directly on `main`.
Stack order:
1. #25363 storage, permissions, API, and SDK
2. #25365 API test coverage
3. #25366 chattool and chatd integration
4. #25066 settings UI and docs
5. #25386 personal skills slash menu
## What?
Adds the `user_skills` database table, generated queries, RBAC resources
and scopes, audit resource handling, experimental user-scoped CRUD
endpoints, SDK types, and generated API/site types.
Follow-up review and restack fixes:
- Enforce a bounded personal skill description in parser and database
constraints.
- Return `403 Forbidden` for unauthorized create and update attempts.
- Return explicit conflict responses when soft-deleted users are
targeted.
- Keep user admins out of personal skills, while site owners can read
and delete but not create or update.
- Document trigger-raised constraint names and keep schema constants
covered by tests.
- Reuse `UserSkillMetadata` in the full `UserSkill` SDK response type.
- Generate user skill IDs in Go instead of relying on a database
default.
- Rebase on latest `main` and renumber the user skills migration to
`000502_user_skills`.
## Why?
Personal skills need durable user-owned storage with owner
authorization, limited site-owner moderation, and a hidden API surface
before chatd can consume them.
## Validation
- `make gen`
- `go test ./coderd/database -run '^TestUserSkillSchemaConstants$'
-count=1`
- `go test ./coderd/database/dbauthz -run
'^TestMethodTestSuite/TestUserSkills$' -count=1`
- `go test ./coderd -run '^TestPatchUserSkill$' -count=1`
- `go test ./codersdk ./coderd/database/db2sdk`
- `make lint`
- pre-commit hook on `97fd58108d`
*Disclaimer: implemented by a Coder Agent using Claude Opus 4.6*
The `reconciliation stats` log line runs on every reconciliation tick
(every 5 minutes by default), even when there are no presets to
reconcile. In a steady-state installation without prebuilds activity,
this is the only log line that persistently shows up at info level.
Demote it to `debug` so the steady-state log output stays quiet.
Before:
```
2026-05-14 15:01:25.085 [info] coderd.prebuilds: reconciliation stats elapsed=1.649153ms presets_total=0 presets_reconciled=0
```
After: same line is emitted at `debug` level and is suppressed at the
default info log level.
This PR builds on top of https://github.com/coder/coder/pull/25070 to
add a way of running the larger "fake agent" manager via the existing
CLI, pulling in the URL/credentials already set.
With this, we can run a pod per scaletest region to act as all the
workspaces in that region.
This is in a new subcommand `scaletest agentfake` currently.
---------
Signed-off-by: Callum Styan <callumstyan@gmail.com>
These chatd tests are flaking for the same stale control-notification
race tracked by CODAGT-353, so this change skips the newly reflaking
advisor-chain and `TestPatchChatMessage/ChangesModel` tests and rewrites
the older `TODO(hugodutka)` skips to point at the same root cause. This
keeps the known flakes documented consistently until the chatd
notification-flow refactor lands.
Closes CODAGT-427
Closes https://github.com/coder/internal/issues/1510
This PR introduces a "fake agent" + manager, which can be used during
scaletests to run a single executable that acts as many workspace
agents. The goals of these are to provide a much lighter weight
implementation of a workspace in terms of resource cost and startup time when executing scaletests.
---------
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Mux <noreply@coder.com>
Closes
https://linear.app/codercom/issue/AIGOV-284/add-group-budgets-table-and-crud-api
## Summary
Adds the `group_ai_budgets` table and the following endpoints:
- `GET /api/v2/groups/{group}/ai/budget`
- `PUT /api/v2/groups/{group}/ai/budget`
- `DELETE /api/v2/groups/{group}/ai/budget`
Each group may have at most one budget row. If no row exists, no budget
is enforced.
### Feature gate
Added `RequireFeatureMW(FeatureAIBridge)` on the `/ai/budget` sub-route.
## RBAC
Authorization reuses `rbac.ResourceGroup` with the existing
`.InOrganization(...).WithID(...)` scoping model.
The `dbauthz` wrappers load the parent `groups` row and authorize
against it.
No new resource type is introduced. As a result, anyone with
`group:update` permissions (Owner, OrgAdmin, or UserAdmin within the
organization) can manage AI budgets for that group.
## Read access for group members
`database.Group.RBACObject()` grants `policy.ActionRead` to all members
of the group through the group ACL:
```go
func (g Group) RBACObject() rbac.Object {
return rbac.ResourceGroup.WithID(g.ID).
InOrg(g.OrganizationID).
// Group members can read the group.
WithGroupACL(map[string][]policy.Action{
g.ID.String(): {
policy.ActionRead,
},
})
}
```
Because the `GET` endpoint authorizes against the same loaded `Group`
object, any group member can call:
```text
GET /api/v2/groups/{group}/ai/budget
```
`PUT` and `DELETE` remain admin-only. The group ACL grants only
`ActionRead`, so write operations continue to require role-based
`group:update` permissions.
## Alternative considered
A dedicated `rbac.ResourceGroupAiBudget` resource would allow budget
management to be separated from general group administration.
We decided not to add that complexity for now.
Closes https://github.com/coder/coder/issues/13112
**Breaking Change**: Removed status code `StatusNotModified` when no
diffs occur in a patch. Now the patch is always applied and a template
is always returned.