Add conditional UI based on user access level

ProjectPage:
- Display user's access level badge (Owner/Admin/Write/Read)
- Hide "New Package" button for read-only users
- Show "Read-only access" text for authenticated read-only users

PackagePage:
- Hide upload form for read-only users
- Show message explaining read-only access
- Fetch access level along with package data

frontend/src/pages/PackagePage.tsx

@@ -1,7 +1,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { useParams, useSearchParams, useNavigate } from 'react-router-dom';
-import { TagDetail, Package, PaginatedResponse } from '../types';
+import { TagDetail, Package, PaginatedResponse, AccessLevel } from '../types';
-import { listTags, getDownloadUrl, getPackage } from '../api';
+import { listTags, getDownloadUrl, getPackage, getMyProjectAccess } from '../api';
 import { Breadcrumb } from '../components/Breadcrumb';
 import { Badge } from '../components/Badge';
 import { SearchInput } from '../components/SearchInput';
@@ -10,6 +10,7 @@ import { FilterChip, FilterChipGroup } from '../components/FilterChip';
 import { DataTable } from '../components/DataTable';
 import { Pagination } from '../components/Pagination';
 import { DragDropUpload, UploadResult } from '../components/DragDropUpload';
+import { useAuth } from '../contexts/AuthContext';
 import './Home.css';
 import './PackagePage.css';
 
@@ -57,6 +58,7 @@ function PackagePage() {
   const { projectName, packageName } = useParams<{ projectName: string; packageName: string }>();
   const navigate = useNavigate();
   const [searchParams, setSearchParams] = useSearchParams();
+  const { user } = useAuth();
 
   const [pkg, setPkg] = useState<Package | null>(null);
   const [tagsData, setTagsData] = useState<PaginatedResponse<TagDetail> | null>(null);
@@ -65,6 +67,10 @@ function PackagePage() {
   const [uploadTag, setUploadTag] = useState('');
   const [uploadSuccess, setUploadSuccess] = useState<string | null>(null);
   const [artifactIdInput, setArtifactIdInput] = useState('');
+  const [accessLevel, setAccessLevel] = useState<AccessLevel | null>(null);
+
+  // Derived permissions
+  const canWrite = accessLevel === 'write' || accessLevel === 'admin';
 
   // Get params from URL
   const page = parseInt(searchParams.get('page') || '1', 10);
@@ -92,12 +98,14 @@ function PackagePage() {
 
     try {
       setLoading(true);
-      const [pkgData, tagsResult] = await Promise.all([
+      const [pkgData, tagsResult, accessResult] = await Promise.all([
         getPackage(projectName, packageName),
         listTags(projectName, packageName, { page, search, sort, order }),
+        getMyProjectAccess(projectName),
       ]);
       setPkg(pkgData);
       setTagsData(tagsResult);
+      setAccessLevel(accessResult.access_level);
       setError(null);
     } catch (err) {
       setError(err instanceof Error ? err.message : 'Failed to load data');
@@ -286,28 +294,35 @@ function PackagePage() {
       {error && <div className="error-message">{error}</div>}
       {uploadSuccess && <div className="success-message">{uploadSuccess}</div>}
 
-      <div className="upload-section card">
+      {canWrite ? (
-        <h3>Upload Artifact</h3>
+        <div className="upload-section card">
-        <div className="upload-form">
+          <h3>Upload Artifact</h3>
-          <div className="form-group">
+          <div className="upload-form">
-            <label htmlFor="upload-tag">Tag (optional)</label>
+            <div className="form-group">
-            <input
+              <label htmlFor="upload-tag">Tag (optional)</label>
-              id="upload-tag"
+              <input
-              type="text"
+                id="upload-tag"
-              value={uploadTag}
+                type="text"
-              onChange={(e) => setUploadTag(e.target.value)}
+                value={uploadTag}
-              placeholder="v1.0.0, latest, stable..."
+                onChange={(e) => setUploadTag(e.target.value)}
+                placeholder="v1.0.0, latest, stable..."
+              />
+            </div>
+            <DragDropUpload
+              projectName={projectName!}
+              packageName={packageName!}
+              tag={uploadTag || undefined}
+              onUploadComplete={handleUploadComplete}
+              onUploadError={handleUploadError}
             />
           </div>
-          <DragDropUpload
-            projectName={projectName!}
-            packageName={packageName!}
-            tag={uploadTag || undefined}
-            onUploadComplete={handleUploadComplete}
-            onUploadError={handleUploadError}
-          />
         </div>
-      </div>
+      ) : user ? (
+        <div className="upload-section card">
+          <h3>Upload Artifact</h3>
+          <p className="text-muted">You have read-only access to this project and cannot upload artifacts.</p>
+        </div>
+      ) : null}
 
       <div className="section-header">
         <h2>Tags / Versions</h2>

frontend/src/pages/ProjectPage.tsx

@@ -1,13 +1,14 @@
 import { useState, useEffect, useCallback } from 'react';
 import { useParams, Link, useSearchParams, useNavigate } from 'react-router-dom';
-import { Project, Package, PaginatedResponse } from '../types';
+import { Project, Package, PaginatedResponse, AccessLevel } from '../types';
-import { getProject, listPackages, createPackage } from '../api';
+import { getProject, listPackages, createPackage, getMyProjectAccess } from '../api';
 import { Breadcrumb } from '../components/Breadcrumb';
 import { Badge } from '../components/Badge';
 import { SearchInput } from '../components/SearchInput';
 import { SortDropdown, SortOption } from '../components/SortDropdown';
 import { FilterChip, FilterChipGroup } from '../components/FilterChip';
 import { Pagination } from '../components/Pagination';
+import { useAuth } from '../contexts/AuthContext';
 import './Home.css';
 
 const SORT_OPTIONS: SortOption[] = [
@@ -30,6 +31,7 @@ function ProjectPage() {
   const { projectName } = useParams<{ projectName: string }>();
   const navigate = useNavigate();
   const [searchParams, setSearchParams] = useSearchParams();
+  const { user } = useAuth();
 
   const [project, setProject] = useState<Project | null>(null);
   const [packagesData, setPackagesData] = useState<PaginatedResponse<Package> | null>(null);
@@ -38,6 +40,11 @@ function ProjectPage() {
   const [showForm, setShowForm] = useState(false);
   const [newPackage, setNewPackage] = useState({ name: '', description: '', format: 'generic', platform: 'any' });
   const [creating, setCreating] = useState(false);
+  const [accessLevel, setAccessLevel] = useState<AccessLevel | null>(null);
+  const [isOwner, setIsOwner] = useState(false);
+
+  // Derived permissions
+  const canWrite = accessLevel === 'write' || accessLevel === 'admin';
 
   // Get params from URL
   const page = parseInt(searchParams.get('page') || '1', 10);
@@ -66,12 +73,15 @@ function ProjectPage() {
 
     try {
       setLoading(true);
-      const [projectData, packagesResult] = await Promise.all([
+      const [projectData, packagesResult, accessResult] = await Promise.all([
         getProject(projectName),
         listPackages(projectName, { page, search, sort, order, format: format || undefined }),
+        getMyProjectAccess(projectName),
       ]);
       setProject(projectData);
       setPackagesData(packagesResult);
+      setAccessLevel(accessResult.access_level);
+      setIsOwner(accessResult.is_owner);
       setError(null);
     } catch (err) {
       setError(err instanceof Error ? err.message : 'Failed to load data');
@@ -159,6 +169,11 @@ function ProjectPage() {
             <Badge variant={project.is_public ? 'public' : 'private'}>
               {project.is_public ? 'Public' : 'Private'}
             </Badge>
+            {accessLevel && (
+              <Badge variant={accessLevel === 'admin' ? 'success' : accessLevel === 'write' ? 'info' : 'default'}>
+                {isOwner ? 'Owner' : accessLevel.charAt(0).toUpperCase() + accessLevel.slice(1)}
+              </Badge>
+            )}
           </div>
           {project.description && <p className="description">{project.description}</p>}
           <div className="page-header__meta">
@@ -169,14 +184,20 @@ function ProjectPage() {
             <span className="meta-item">by {project.created_by}</span>
           </div>
         </div>
-        <button className="btn btn-primary" onClick={() => setShowForm(!showForm)}>
+        {canWrite ? (
-          {showForm ? 'Cancel' : '+ New Package'}
+          <button className="btn btn-primary" onClick={() => setShowForm(!showForm)}>
-        </button>
+            {showForm ? 'Cancel' : '+ New Package'}
+          </button>
+        ) : user ? (
+          <span className="text-muted" title="You have read-only access to this project">
+            Read-only access
+          </span>
+        ) : null}
       </div>
 
       {error && <div className="error-message">{error}</div>}
 
-      {showForm && (
+      {showForm && canWrite && (
         <form className="form card" onSubmit={handleCreatePackage}>
           <h3>Create New Package</h3>
           <div className="form-row">