## Describe your changes
Native AWS Bedrock requests carry the model in the URL path as a
cross-region inference-profile id (e.g.
`us.anthropic.claude-haiku-4-5`). The request parser normalizes that to
the catalog key (`anthropic.claude-haiku-4-5`) before the router runs,
but the router matched it against the operator's registered provider
models with exact string equality. So a Bedrock provider registered with
the id Bedrock actually uses (`us.anthropic…`) never matched a
normalized request → the request denied with
`llm_policy.model_not_routable` ("no provider configured for model …").
Only a provider registered with the already-stripped catalog id worked,
which is not how Bedrock ids appear.
Fix: introduce a single shared `llm.NormalizeBedrockModel` (the same
ARN/region-prefix/version-suffix stripping the parser already does) and,
in the router's `routeClaimsModel`, normalize a **Bedrock** route's
candidate models before comparing. Now a Bedrock provider registered
with either the raw inference-profile id or the normalized catalog id
matches the request. Non-Bedrock routes keep exact matching.
Surfaced by the new native-Bedrock e2e (`WireBedrock`,
`/model/{id}/invoke`); the old e2e used the Anthropic body shape, which
never normalized either side and so hid this.
The request parser keeps its own identical normalizer for now;
de-duplicating it onto `llm.NormalizeBedrockModel` is a trivial
follow-up.
## Issue ticket number and link
N/A — follow-up to the Agent Network Bedrock support / model-allowlist
work.
## Stack
<!-- branch-stack -->
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [x] Created tests that fail without the change (if possible)
- [x] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
Internal routing correctness fix; no user-facing surface change.
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:
https://github.com/netbirdio/docs/pull/__
## Tests
- `proxy/internal/llm`: `NormalizeBedrockModel` unit cases (region
prefixes, version suffixes, ARN).
- `proxy/internal/middleware/builtin/llm_router`: `routeClaimsModel`
matches a Bedrock route registered with the raw `us.anthropic…` id
against a normalized request model; non-Bedrock routes still match
exactly.
Note: full through-tunnel e2e verification of this (the native-Bedrock
`TestProvidersMatrix/bedrock`) also needs the DNS lazy-connection
warm-up (separate PR) to get the client past the proxy-peer gate; they
converge once both land.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Improved Amazon Bedrock model matching across ARN formats, regional
prefixes, and version or throughput suffixes.
* Bedrock routes now correctly match equivalent model identifiers even
when requests and route configurations use different formats.
* Non-Bedrock model matching remains exact.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Describe your changes
Adds a Japanese (ja) locale for the desktop UI, following the procedure
in `client/ui/i18n/TRANSLATING.md`.
- New `client/ui/i18n/locales/ja/common.json` — all 441 keys from the
`en` source bundle, `message` only, same key order.
- Registered in `client/ui/i18n/locales/_index.json`: `{"code": "ja",
"displayName": "日本語", "englishName": "Japanese"}`.
Translation notes:
- Placeholders (`{version}`, `{count}`, `{name}`, `{remaining}`, ...),
`\n`, trailing `…`/`...`, the leading space in
`notify.update.enforcedSuffix`, and the `<docs>…</docs>` inline-link
tags are all preserved verbatim.
- Brands kept as-is: NetBird, WireGuard® (® preserved), Rosenpass,
GitHub, NetBird Cloud. Acronyms kept: SSO, DNS, IP/IPv6, ACL, SSH, JWT,
TTL, SFTP, MTU, PSK, LAN, P2P, ICE, IdP.
- Formal register (です・ます); short labels for buttons/tray; quoted UI
labels use Japanese brackets 「」.
No code changes are required: the React frontend auto-loads every
`locales/*/common.json` via `import.meta.glob`, the tray/Go side embeds
the tree via `//go:embed all:i18n/locales`, and the language picker
lists whatever `_index.json` declares.
### Verification
- `go test ./client/ui/i18n/` passes.
- JSON valid; key set and order identical to `en`; no `description`
fields; no empty messages; placeholder/`\n` counts match `en`.
- Built the Windows UI and confirmed the General, Network, Security, and
Troubleshooting settings tabs plus the main window render correctly in
Japanese (language picker shows "日本語 (Japanese)"), with no text
truncation, overflow, or leaked placeholders.
## Issue ticket number and link
N/A
## Stack
<!-- branch-stack -->
### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [x] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [x] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— adding a shipped UI locale is the documented extension path in
`client/ui/i18n/TRANSLATING.md`.
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change — UI translation
strings only; no user-facing product docs are affected.
### Docs PR URL (required if "docs added" is checked)
N/A
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added Japanese as a supported interface language.
* **Localization**
* Provided full Japanese translations for the UI, covering navigation,
settings, onboarding, desktop/tray notifications, connection and status
messaging, troubleshooting, update/about screens, and
authentication/error dialogs.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: Eduard Gert <kontakt@eduardgert.de>
## Describe your changes
When loadStateFile fails to unmarshal the state file, log whether the
file is empty (0 bytes) or has malformed content, including the byte
size.
## Issue ticket number and link
## Stack
<!-- branch-stack -->
### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [x] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
### Docs PR URL (required if "docs added" is checked)
aste the PR link from https://github.com/netbirdio/docs here:
https://github.com/netbirdio/docs/pull/__
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Improved state-file loading warnings by distinguishing empty files
from files containing malformed content.
* Preserved existing recovery behavior for corrupted state files.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Describe your changes
`isValidAccessToken` only decodes the JWT payload and checks the
audience
claim, but its name suggested full token validation. Rename it to
`validateTokenAudience` and document what it does: a client-side
audience/shape
check on a token just obtained from the IdP over TLS. Token authenticity
is
enforced server-side by the management server, which verifies the
signature
against the IdP's JWKS (`shared/auth/jwt/validator.go`) on every
request.
Also harden the parser: a non-empty token lacking the three-part JWT
structure
caused an index-out-of-range panic (`strings.Split(token, ".")[1]`); the
shape
is now validated first. `parseEmailFromIDToken` is documented as
best-effort UX
data (login hint/display), never used for authorization. Added tests for
audience matching, malformed tokens, and the panic regression.
Changes:
- Rename `isValidAccessToken` → `validateTokenAudience`; document that
it does
not verify the signature and that authenticity is enforced server-side.
- Fix an index-out-of-range panic on a non-empty token lacking JWT
structure
(`strings.Split(token, ".")[1]`) by validating the three-part shape
first.
- Document `parseEmailFromIDToken` as best-effort/unverified, used only
for the
login-hint/display UX, never for an authorization decision.
- Add `util_test.go` covering audience matching (string and array),
missing
audience, malformed payloads, and the panic regression.
## Issue ticket number and link
Internal cleanup: rename a misleadingly-named client-side helper and
harden JWT
parsing against malformed input (`client/internal/auth/util.go`).
## Stack
- `0.74.7-branch` - ⚠️ No PR associated with branch <!--
branch-stack -->
- \#6806 :point\_left:
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [x] Created tests that fail without the change (if possible)
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
Internal client-side helper rename plus a panic hardening fix. No public
API,
gRPC, CLI/service flag, or configuration change; token authenticity
enforcement
(server-side JWKS verification) is unchanged.
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from <https://github.com/netbirdio/docs> here:
N/A
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Bug Fixes**
- Improved access-token audience validation during device and PKCE
authentication flows.
- Malformed tokens now return clear validation errors instead of risking
runtime failures.
- Added support for validating both string and array audience claims.
- **Tests**
- Added coverage for malformed tokens, invalid claims, missing
audiences, and panic prevention.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Describe your changes
Validate peer-supplied FQDN and hostname before they are written into
the
generated NetBird SSH client config (`client/ssh/config/manager.go`).
These
values originate from remote peers and were previously written verbatim
into
the config; malformed values (e.g. containing unexpected characters)
could
produce a broken or unintended config. FQDN/hostname are now checked
with
`domain.IsValidDomainNoWildcard`, and invalid, non-empty values are
dropped
with a warning. IPs are unaffected (already validated `netip.Addr`).
Added a
test covering malformed hostnames.
## Issue ticket number and link
Internal input-validation hardening for peer-supplied hostnames in the
generated SSH client config (`client/ssh/config/manager.go`).
## Stack
- \#6726 <!-- branch-stack -->
- \#6805 :point\_left:
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [x] Created tests that fail without the change (if possible)
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
Internal client SSH config generation. No public API, gRPC, CLI/service
flag,
or configuration change — only input validation on peer-supplied
hostnames
before they are written to the generated ssh\_config.
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from <https://github.com/netbirdio/docs> here:
N/A
generateFreePort used netip.MustParseAddrPort on the OS-produced
LocalAddr().String(), which panics on address strings that don't parse.
Eliminate the parsing entirely by reading the port from the concrete
*net.UDPAddr that net.ListenUDP returns, and construct the bind address
directly. The probe listener is bound with udp4 so only an IPv4 wildcard
address is ever used.
## Describe your changes
## Issue ticket number and link
## Stack
<!-- branch-stack -->
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:
https://github.com/netbirdio/docs/pull/__
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Summary by CodeRabbit
* **Bug Fixes**
* Improved reliability when selecting an ephemeral UDP port.
* Avoided potential failures when determining the assigned port.
* Preserved existing error handling and diagnostic logging for listener
operations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
NewAuth built a fresh in-memory config on every call via
CreateInMemoryConfig, which generates a new WireGuard private key when
none is set. The iOS Swift layer calls this on interactive re-login and
writes the resulting config back to the profile's netbird.cfg, so each
re-auth replaced the peer's persisted private key with a new one. A new
key means a new public key, so the management server registered a
brand-new peer on every re-authentication — named after the fallback
hostname.
Load the existing config with DirectUpdateOrCreateConfig when a config
file is already present so re-login reuses the peer's persisted private
key (and its identity). Only fall back to a fresh in-memory config for
the first-time login when no config file exists yet (or after logout,
which deletes the file). DirectUpdateOrCreateConfig uses non-atomic
writes so it also works inside the tvOS App Group sandbox. This matches
what Run() and LoginForMobile() already do.
## Describe your changes
## Issue ticket number and link
## Stack
<!-- branch-stack -->
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:
https://github.com/netbirdio/docs/pull/__
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added support for loading or creating persistent configuration when a
configuration file path is provided.
* Continued support for in-memory configuration for temporary or
first-time use.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Describe your changes
* [proxy] enforce model allowlist for URL-routed providers
(Bedrock/Vertex) by @mlsmaycon in
https://github.com/netbirdio/netbird/pull/6764
* [management] Remove proxy peer stale deduplication logic by @mlsmaycon
in https://github.com/netbirdio/netbird/pull/6768
## Issue ticket number and link
## Stack
<!-- branch-stack -->
### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:
https://github.com/netbirdio/docs/pull/__
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Added model-allowlist guardrails for path-routed providers, including
Bedrock and Vertex.
- Added Bedrock request support for chat interactions.
- Added guardrail management capabilities.
- **Bug Fixes**
- Requests with missing or blank model identifiers are now denied when a
model allowlist is configured, improving fail-closed protection.
- Corrected provider-specific request handling and session tracking for
Bedrock interactions.
- **Tests**
- Expanded coverage for allowlist enforcement and provider routing
scenarios.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Theodor Midtlien <theodor@midtlien.com>
Co-authored-by: blaugrau90 <61945343+blaugrau90@users.noreply.github.com>
Co-authored-by: Viktor Liu <17948409+lixmal@users.noreply.github.com>
## Describe your changes
Removing a leftover from an initial implementation. We ended up
resolving it on the client with status checks on the DNS response
## Issue ticket number and link
## Stack
- \#6726 <!-- branch-stack -->
- \#6768 :point\_left:
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from <https://github.com/netbirdio/docs> here:
<https://github.com/netbirdio/docs/pull/>\_\_
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Added support for Bedrock-native request routing in agent network
scenarios.
- Added guardrail management capabilities for creating and removing
model allowlists.
- **Bug Fixes**
- Model allowlists now reject requests when the model is missing or
blank.
- Improved Rosenpass and WireGuard recovery after repeated handshake
failures.
- Improved relay connection handling so status and cleanup operations
remain responsive during stalled connections.
- Updated private service DNS zones to avoid unintended search-domain
behavior.
- **Tests**
- Expanded coverage for model allowlists, handshake recovery, relay
concurrency, and Bedrock routing.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Describe your changes
The Agent Network policy Guardrail "Model Allowlist" was not enforced
for providers whose model travels in the URL/path rather than the JSON
body — most visibly AWS Bedrock (reported in netbirdio/netbird#6751),
and the same class applies to Google Vertex.
Root cause: the `llm_guardrail` allowlist check **failed open**.
`evaluateAllowlist` returned allow whenever the request model was absent
from the metadata bag (`middleware.go`, `if !modelPresent { return nil
}`). The model is stamped upstream by `llm_request_parser`; for
body-routed providers (OpenAI/Anthropic) it comes from the JSON body,
but for path-routed providers the model is recovered only when the
request matches a recognized path shape (Bedrock
`/model/{id}/{invoke|converse|...}`, Vertex
`/v1/projects/.../publishers/.../models/...`). Any shape the parser did
not recognize reached the guardrail with no model and was allowed
regardless of the allowlist.
Fix (provider-agnostic): **fail closed**. When an allowlist is
configured and the model cannot be determined (absent or empty), the
request is denied `403` with a distinct `llm_policy.model_unknown`
reason. This closes the bypass for Bedrock, Vertex, and any future
URL-routed provider in one place. When no allowlist is configured,
behavior is unchanged.
The model allowlist is enforced solely in the proxy `llm_guardrail`;
management's `CheckLLMPolicyLimits` handles only token/budget caps, so
no management change is required.
## Issue ticket number and link
<https://github.com/netbirdio/netbird/discussions/6751>
## Stack
- \#6726 <!-- branch-stack -->
- \#6764 :point\_left:
### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [x] Created tests that fail without the change (if possible)
- [x] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).
> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
## Documentation
Select exactly one:
- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)
Bug fix that restores the documented allowlist behavior; no user-facing
surface changes.
### Docs PR URL (required if "docs added" is checked)
Paste the PR link from <https://github.com/netbirdio/docs> here:
<https://github.com/netbirdio/docs/pull/>\_\_
## Tests
- `llm_guardrail`: absent/empty model under a configured allowlist now
denies (`model_unknown`); empty allowlist still allows a missing model
(fail-closed only applies when a list is set); existing
allow/deny/case-insensitive cases retained.
- `llm_request_parser`: new parser→guardrail integration test drives
real **Bedrock** (`/model/{id}/invoke`) and **Vertex**
(`/v1/projects/.../models/...`) URL shapes and asserts allowed→200,
disallowed→403 (`model_blocked`), and an unrecognized Bedrock action→403
(`model_unknown`, the #6751 regression guard).
Note: a full through-tunnel e2e for the allowlist is intentionally
deferred — the agent-network e2e (`WaitProxyPeer`) is currently red on
`main`/`0.74.x` for an unrelated lazy-connection reason; it will be
added once that harness gate is fixed.
