chore: add clippy.toml, issue/PR templates, Helm OCI docs, logging env vars

- clippy.toml: cognitive-complexity=25, too-many-arguments=7
- Issue templates: bug report + feature request (YAML forms)
- PR template with checklist (fmt, clippy, test, unwrap, changelog)
- README: Helm OCI support documented, NORA_LOG_LEVEL/FORMAT env vars
- GitHub topic: helm-registry re-added (verified helm push/pull works)

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,39 +1,57 @@
 name: Bug Report
-description: Report a bug or unexpected behavior
-labels: ["bug"]
+description: Report a bug in NORA
+labels: [bug]
 body:
   - type: textarea
     id: description
     attributes:
       label: Description
-      description: What happened? What did you expect?
+      description: What happened?
     validations:
       required: true
   - type: textarea
-    id: steps
+    id: expected
     attributes:
-      label: Steps to reproduce
-      description: How can we reproduce the issue?
+      label: Expected Behavior
+      description: What did you expect to happen?
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: Steps to Reproduce
+      description: How can we reproduce this?
+    validations:
+      required: true
   - type: input
     id: version
     attributes:
-      label: NORA version
-      placeholder: "0.2.32"
+      label: NORA Version
+      description: Output of 'nora --version' or Docker tag
+      placeholder: v0.3.0
+    validations:
+      required: true
   - type: dropdown
-    id: protocol
+    id: registry
     attributes:
-      label: Registry protocol
+      label: Registry Protocol
       options:
-        - Docker
+        - Docker/OCI
         - npm
         - Maven
         - PyPI
         - Cargo
+        - Go
         - Raw
         - UI/Dashboard
         - Other
+  - type: dropdown
+    id: storage
+    attributes:
+      label: Storage Backend
+      options:
+        - Local filesystem
+        - S3-compatible
   - type: textarea
     id: logs
     attributes:
-      label: Logs / error output
+      label: Relevant Logs
       render: shell

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,6 +1,6 @@
 name: Feature Request
-description: Suggest a new feature or improvement
-labels: ["enhancement"]
+description: Suggest a new feature for NORA
+labels: [enhancement]
 body:
   - type: textarea
     id: problem
@@ -12,19 +12,26 @@ body:
   - type: textarea
     id: solution
     attributes:
-      label: Proposed solution
+      label: Proposed Solution
       description: How would you like it to work?
-  - type: dropdown
-    id: protocol
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
     attributes:
-      label: Related protocol
+      label: Alternatives Considered
+      description: Other approaches you've thought about
+  - type: dropdown
+    id: registry
+    attributes:
+      label: Related Registry
       options:
-        - Docker
+        - Docker/OCI
         - npm
         - Maven
         - PyPI
         - Cargo
+        - Go
         - Raw
-        - CLI
         - UI/Dashboard
-        - General
+        - Core/General

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,16 @@
+## Summary
+
+<!-- What does this PR do? -->
+
+## Changes
+
+<!-- List key changes -->
+
+## Checklist
+
+- [ ]  passes
+- [ ]  passes
+- [ ]  passes
+- [ ] No  in production code
+- [ ] New public API has documentation
+- [ ] CHANGELOG updated (if user-facing change)

README.md

@@ -15,7 +15,7 @@ Open [http://localhost:4000/ui/](http://localhost:4000/ui/) — your registry is
 ## Why NORA
 
 - **Zero-config** — single 32 MB binary, no database, no dependencies. `docker run` and it works.
-- **Production-tested** — Docker, Maven, npm, PyPI, Cargo, Go, Raw. Used in real CI/CD with ArgoCD, Buildx cache, and air-gapped environments.
+- **Production-tested** — Docker (+ Helm OCI), Maven, npm, PyPI, Cargo, Go, Raw. Used in real CI/CD with ArgoCD, Buildx cache, and air-gapped environments.
 - **Secure by default** — [OpenSSF Scorecard](https://scorecard.dev/viewer/?uri=github.com/getnora-io/nora), signed releases, SBOM, fuzz testing, 200+ unit tests.
 
 [![Release](https://img.shields.io/github/v/release/getnora-io/nora)](https://github.com/getnora-io/nora/releases)
@@ -30,7 +30,7 @@ Open [http://localhost:4000/ui/](http://localhost:4000/ui/) — your registry is
 
 | Registry | Mount Point | Upstream Proxy | Auth |
 |----------|------------|----------------|------|
-| Docker Registry v2 | `/v2/` | Docker Hub, GHCR, any OCI | ✓ |
+| Docker Registry v2 | `/v2/` | Docker Hub, GHCR, any OCI, Helm OCI | ✓ |
 | Maven | `/maven2/` | Maven Central, custom | proxy-only |
 | npm | `/npm/` | npmjs.org, custom | ✓ |
 | Cargo | `/cargo/` | — | ✓ |
@@ -38,6 +38,8 @@ Open [http://localhost:4000/ui/](http://localhost:4000/ui/) — your registry is
 | Go Modules | `/go/` | proxy.golang.org, custom | ✓ |
 | Raw files | `/raw/` | — | ✓ |
 
+> **Helm charts** work via the Docker/OCI endpoint — `helm push`/`pull` with `--plain-http` or behind TLS reverse proxy.
+
 ## Quick Start
 
 ### Docker (Recommended)
@@ -142,7 +144,9 @@ See [Authentication guide](https://getnora.dev/configuration/authentication/) fo
 | `NORA_STORAGE_MODE` | local | `local` or `s3` |
 | `NORA_AUTH_ENABLED` | false | Enable authentication |
 | `NORA_DOCKER_UPSTREAMS` | `https://registry-1.docker.io` | Docker upstreams (`url\|user:pass,...`) |
-
+| `NORA_LOG_LEVEL` | info | Log level: trace, debug, info, warn, error |
+| `NORA_LOG_FORMAT` | text | Log format: `text` (human) or `json` (structured) |
+| `NORA_PUBLIC_URL` | — | Public URL for rewriting artifact links |
 See [full configuration reference](https://getnora.dev/configuration/settings/) for all options.
 
 ### config.toml

clippy.toml

@@ -0,0 +1,4 @@
+# NORA clippy configuration
+cognitive-complexity-threshold = 25
+too-many-arguments-threshold = 7
+type-complexity-threshold = 300