Full codebase cleanup and optimization pass

- Fix all hardcoded light colors breaking dark mode (FileAttachment, TaskDetail, RequestDetail)
- Parallelize sequential DB fetches in TaskDetail, CompanyDetail, MyProjects
- Add error handling: NewRequest project/file upload, MyCompany update, CompanyDetail prices, AuthContext profile fetch
- Fix currentUser.company_id → currentUser.company?.id in NewRequest
- Remove stale company.email references from InvoiceDetail, ProjectDetail, TaskDetail
- Clean up dead email field from Companies form reset

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/FileAttachment.jsx

@@ -46,7 +46,7 @@ export default function FileAttachment({ files, onChange }) {
       <div style={{
         border: `2px dashed ${files.length > 0 ? 'var(--accent)' : 'var(--border)'}`,
         borderRadius: 8, padding: '18px 16px', textAlign: 'center',
-        background: files.length > 0 ? '#fffbeb' : '#fafafa', transition: 'all 0.15s',
+        background: 'var(--bg)', transition: 'all 0.15s',
       }}>
         <input type="file" multiple onChange={handleChange} style={{ display: 'none' }} id="req-file-upload" />
         <label htmlFor="req-file-upload" style={{ cursor: 'pointer' }}>
@@ -67,7 +67,7 @@ export default function FileAttachment({ files, onChange }) {
           {files.map((file, i) => (
             <div key={i} style={{
               display: 'flex', alignItems: 'center', justifyContent: 'space-between',
-              padding: '7px 12px', background: 'white', borderRadius: 8, border: '1px solid var(--border)',
+              padding: '7px 12px', background: 'var(--card-bg)', borderRadius: 8, border: '1px solid var(--border)',
             }}>
               <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
                 <span>📄</span>

src/context/AuthContext.jsx

@@ -16,6 +16,7 @@ export function AuthProvider({ children }) {
   const [loading, setLoading] = useState(true);
 
   const fetchAndCacheProfile = async (authUser) => {
+    try {
       const { data } = await supabase
         .from('profiles')
         .select('*, company:companies(id, name, phone, address)')
@@ -26,6 +27,9 @@ export function AuthProvider({ children }) {
         setCurrentUser(profile);
         localStorage.setItem(PROFILE_CACHE_KEY, JSON.stringify(profile));
       }
+    } catch (err) {
+      console.error('Profile fetch failed:', err);
+    }
   };
 
   useEffect(() => {

src/pages/client/MyCompany.jsx

@@ -27,12 +27,13 @@ export default function MyCompany() {
   const handleSave = async (e) => {
     e.preventDefault();
     setSaving(true);
-    await supabase.from('companies').update({
+    const { error } = await supabase.from('companies').update({
       name: form.name.trim(),
       phone: form.phone.trim(),
       address: form.address.trim(),
     }).eq('id', company.id);
     setSaving(false);
+    if (error) { alert('Failed to save. Please try again.'); return; }
     setEditing(false);
   };
 

src/pages/client/MyProjects.jsx

@@ -125,15 +125,11 @@ export default function MyProjects() {
 
   useEffect(() => {
     async function load() {
-      const { data: p } = await supabase
+      const [{ data: p }, { data: t }] = await Promise.all([
-        .from('projects').select('*').order('created_at', { ascending: false });
+        supabase.from('projects').select('*').order('created_at', { ascending: false }),
+        supabase.from('tasks').select('*').order('submitted_at', { ascending: false }),
+      ]);
       setProjects(p || []);
-
-      if (!p || p.length === 0) { setLoading(false); return; }
-
-      const { data: t } = await supabase
-        .from('tasks').select('*').in('project_id', p.map(pr => pr.id))
-        .order('submitted_at', { ascending: false });
       setTasks(t || []);
 
       if (t && t.length > 0) {

src/pages/client/NewRequest.jsx

@@ -16,6 +16,7 @@ export default function NewRequest() {
   const [existingProjects, setExistingProjects] = useState([]);
   const [submitted, setSubmitted] = useState(false);
   const [saving, setSaving] = useState(false);
+  const [error, setError] = useState(null);
   const [form, setForm] = useState({ project: preselectedProject, serviceType: '', title: '', deadline: '', description: '' });
   const [files, setFiles] = useState([]);
   const [customProjects, setCustomProjects] = useState([]);
@@ -24,16 +25,16 @@ export default function NewRequest() {
 
   useEffect(() => {
     async function load() {
-      if (!currentUser.company_id) return;
+      if (!currentUser.company?.id) return;
       const { data: p } = await supabase
         .from('projects')
         .select('id, name')
-        .eq('company_id', currentUser.company_id)
+        .eq('company_id', currentUser.company.id)
         .order('created_at', { ascending: false });
       setExistingProjects((p || []).map(pr => ({ id: pr.id, name: pr.name })));
     }
     load();
-  }, [currentUser.company_id]);
+  }, [currentUser.company?.id]);
 
   const allProjectNames = [
     ...existingProjects.map(p => p.name),
@@ -64,11 +65,12 @@ export default function NewRequest() {
 
   const handleSubmit = async (e) => {
     e.preventDefault();
-    if (!currentUser.company_id) {
+    if (!currentUser.company?.id) {
       alert('Your account is not yet assigned to a company. Please contact support.');
       return;
     }
     setSaving(true);
+    setError(null);
 
     // Find existing project by name within this company, or create new one
     let projectId;
@@ -76,12 +78,13 @@ export default function NewRequest() {
     if (existing) {
       projectId = existing.id;
     } else {
-      const { data: newProject } = await supabase.from('projects').insert({
+      const { data: newProject, error: projectError } = await supabase.from('projects').insert({
-        company_id: currentUser.company_id,
+        company_id: currentUser.company.id,
         name: form.project,
         status: 'active',
       }).select().single();
-      projectId = newProject?.id;
+      if (projectError || !newProject) { setError('Failed to create project.'); setSaving(false); return; }
+      projectId = newProject.id;
     }
 
     if (!projectId) { setSaving(false); return; }
@@ -112,7 +115,12 @@ export default function NewRequest() {
     if (submission && files.length > 0) {
       for (const file of files) {
         const path = `${task.id}/${Date.now()}_${file.name}`;
-        const { data: uploaded } = await supabase.storage.from('submissions').upload(path, file);
+        const { data: uploaded, error: uploadError } = await supabase.storage.from('submissions').upload(path, file);
+        if (uploadError) {
+          setError(`Failed to upload "${file.name}": ${uploadError.message}`);
+          setSaving(false);
+          return;
+        }
         if (uploaded) {
           await supabase.from('submission_files').insert({
             submission_id: submission.id,
@@ -139,7 +147,7 @@ export default function NewRequest() {
     setSubmitted(true);
   };
 
-  if (!currentUser.company_id) {
+  if (!currentUser.company?.id) {
     return (
       <Layout>
         <div style={{ maxWidth: 480, margin: '0 auto', textAlign: 'center', paddingTop: 48 }}>
@@ -251,6 +259,12 @@ export default function NewRequest() {
 
           <FileAttachment files={files} onChange={setFiles} />
 
+          {error && (
+            <div className="notification notification-error" style={{ marginBottom: 16 }}>
+              {error}
+            </div>
+          )}
+
           <div className="notification notification-info" style={{ marginBottom: 16 }}>
             Submitting as <strong>{currentUser?.name}</strong> · {currentUser?.company?.name}
           </div>

src/pages/client/RequestDetail.jsx

@@ -217,7 +217,7 @@ export default function RequestDetail() {
       </div>
 
       {action === 'confirm-delete' && (
-        <div className="card" style={{ background: '#fef2f2', borderColor: '#fecaca', marginBottom: 24 }}>
+        <div className="card" style={{ background: 'var(--bg)', borderColor: 'var(--danger)', marginBottom: 24 }}>
           <div style={{ fontWeight: 600, marginBottom: 8 }}>⚠ Delete this request?</div>
           <p style={{ fontSize: 13, color: 'var(--text-secondary)', marginBottom: 16 }}>
             This will permanently delete <strong>{titleWithVersion}</strong> and all its history. This cannot be undone.

src/pages/team/Companies.jsx

@@ -44,7 +44,7 @@ export default function Companies() {
     setSaving(false);
     if (data) {
       setShowNew(false);
-      setNewForm({ name: '', email: '', phone: '' });
+      setNewForm({ name: '', phone: '', address: '' });
       navigate(`/companies/${data.id}`);
     }
   };

src/pages/team/CompanyDetail.jsx

@@ -25,27 +25,20 @@ export default function CompanyDetail() {
   }, [id]);
 
   async function load() {
-    const [{ data: co }, { data: p }, { data: pr }, { data: u }, { data: unassignedUsers }] = await Promise.all([
+    const [{ data: co }, { data: p }, { data: pr }, { data: u }, { data: unassignedUsers }, { data: t }] = await Promise.all([
       supabase.from('companies').select('*').eq('id', id).single(),
       supabase.from('projects').select('*').eq('company_id', id).order('created_at', { ascending: false }),
       supabase.from('company_prices').select('*').eq('company_id', id),
       supabase.from('profiles').select('id, name, email, created_at').eq('company_id', id).eq('role', 'client'),
       supabase.from('profiles').select('id, name, email').eq('role', 'client').is('company_id', null),
+      supabase.from('tasks').select('*, project:projects!inner(company_id)').eq('project.company_id', id),
     ]);
     setCompany(co);
-    const projectList = p || [];
+    setProjects(p || []);
-    setProjects(projectList);
     setPrices(pr || []);
     setUsers(u || []);
     setUnassigned(unassignedUsers || []);
-
-    if (projectList.length > 0) {
-      const { data: t } = await supabase
-        .from('tasks')
-        .select('*')
-        .in('project_id', projectList.map(pr => pr.id));
     setTasks(t || []);
-    }
     setLoading(false);
   }
 
@@ -86,11 +79,13 @@ export default function CompanyDetail() {
     const priceVal = getPrice(serviceType);
     const existing = prices.find(p => p.service_type === serviceType && p.id);
     if (existing) {
-      await supabase.from('company_prices').update({ price: Number(priceVal) }).eq('id', existing.id);
+      const { error: updateError } = await supabase.from('company_prices').update({ price: Number(priceVal) }).eq('id', existing.id);
+      if (updateError) { setSavingPrice(null); alert('Failed to save price. Please try again.'); return; }
     } else {
-      const { data } = await supabase.from('company_prices').insert({
+      const { data, error: insertError } = await supabase.from('company_prices').insert({
         company_id: id, service_type: serviceType, price: Number(priceVal),
       }).select().single();
+      if (insertError) { setSavingPrice(null); alert('Failed to save price. Please try again.'); return; }
       if (data) setPrices(prev => prev.map(p => p.service_type === serviceType ? data : p));
     }
     setSavingPrice(null);

src/pages/team/InvoiceDetail.jsx

@@ -89,7 +89,6 @@ export default function InvoiceDetail() {
         <div className="card">
           <div className="card-title">Bill To</div>
           <div style={{ fontSize: 15, fontWeight: 700 }}>{company?.name}</div>
-          {company?.email && <div style={{ fontSize: 13, color: 'var(--text-muted)', marginTop: 2 }}>{company.email}</div>}
           <div style={{ marginTop: 12 }}>
             <Link to={`/companies/${company?.id}`} className="btn btn-outline btn-sm">View Company</Link>
           </div>

src/pages/team/ProjectDetail.jsx

@@ -56,7 +56,6 @@ export default function ProjectDetail() {
           <div className="card-title">Project Info</div>
           <div className="detail-grid" style={{ marginBottom: 0 }}>
             <div className="detail-item"><label>Company</label><p>{company?.name || '—'}</p></div>
-            <div className="detail-item"><label>Contact</label><p>{company?.email || '—'}</p></div>
             <div className="detail-item"><label>Status</label><p><StatusBadge status={project.status} /></p></div>
             <div className="detail-item"><label>Started</label><p>{new Date(project.created_at).toLocaleDateString()}</p></div>
           </div>

src/pages/team/TaskDetail.jsx

@@ -37,18 +37,14 @@ export default function TaskDetail() {
       setTask(t);
 
       const [{ data: p }, { data: subs }, { data: team }] = await Promise.all([
-        supabase.from('projects').select('*').eq('id', t.project_id).single(),
+        supabase.from('projects').select('*, company:companies(*)').eq('id', t.project_id).single(),
         supabase.from('submissions').select('*, delivery:deliveries(*, files:delivery_files(*))').eq('task_id', id).order('version_number'),
         supabase.from('profiles').select('*').eq('role', 'team'),
       ]);
       setProject(p);
+      setCompany(p?.company || null);
       setSubmissions(subs || []);
       setTeamMembers(team || []);
-
-      if (p) {
-        const { data: co } = await supabase.from('companies').select('*').eq('id', p.company_id).single();
-        setCompany(co);
-      }
       setLoading(false);
     }
     load();
@@ -187,7 +183,7 @@ export default function TaskDetail() {
         <div className="card" style={{ marginBottom: 24, border: '1px solid var(--accent)', borderRadius: 12 }}>
           <div className="card-title">Send to Client — {company?.name}</div>
           <p style={{ fontSize: 13, color: 'var(--text-secondary)', marginBottom: 16 }}>
-            Upload the completed file and add an optional message. An email will be sent to <strong>{company?.email}</strong>.
+            Upload the completed file and add an optional message for the client.
           </p>
           <form onSubmit={handleSendToClient}>
             <div className="form-group">
@@ -200,7 +196,7 @@ export default function TaskDetail() {
               <div style={{
                 border: `2px dashed ${sendForm.files.length > 0 ? 'var(--accent)' : 'var(--border)'}`,
                 borderRadius: 8, padding: '20px 16px', textAlign: 'center',
-                background: sendForm.files.length > 0 ? '#fffbeb' : '#fafafa',
+                background: 'var(--bg)',
               }}>
                 <input type="file" multiple onChange={handleFileChange} style={{ display: 'none' }} id="file-upload" />
                 <label htmlFor="file-upload" style={{ cursor: 'pointer' }}>
@@ -215,7 +211,7 @@ export default function TaskDetail() {
               {sendForm.files.length > 0 && (
                 <div style={{ marginTop: 10, display: 'flex', flexDirection: 'column', gap: 6 }}>
                   {sendForm.files.map((file, i) => (
-                    <div key={i} style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', padding: '8px 12px', background: 'white', borderRadius: 8, border: '1px solid var(--border)' }}>
+                    <div key={i} style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', padding: '8px 12px', background: 'var(--card-bg)', borderRadius: 8, border: '1px solid var(--border)' }}>
                       <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
                         <span>📄</span>
                         <div>
@@ -278,12 +274,12 @@ export default function TaskDetail() {
               <button className="btn btn-primary" onClick={handleResume} disabled={saving}>▶ Resume</button>
             )}
             {task.status === 'client_review' && (
-              <div style={{ padding: '10px 14px', background: '#f5f3ff', borderRadius: 8, fontSize: 13, color: '#7c3aed', fontWeight: 500 }}>
+              <div style={{ padding: '10px 14px', background: 'var(--bg)', borderRadius: 8, fontSize: 13, color: '#7c3aed', fontWeight: 500 }}>
                 ⏳ Awaiting client review — no action needed.
               </div>
             )}
             {task.status === 'client_approved' && (
-              <div style={{ padding: '10px 14px', background: '#f0fdf4', borderRadius: 8, fontSize: 13, color: '#16a34a', fontWeight: 500 }}>
+              <div style={{ padding: '10px 14px', background: 'var(--bg)', borderRadius: 8, fontSize: 13, color: '#16a34a', fontWeight: 500 }}>
                 ✓ Client approved this job.
               </div>
             )}