feat: unified Claude API key and profile system with z.AI, MiniMax, OpenRouter support (#600)

* feat: add Claude API provider profiles for alternative endpoints

Add support for managing multiple Claude-compatible API endpoints
(z.AI GLM, AWS Bedrock, etc.) through provider profiles in settings.

Features:
- New ClaudeApiProfile type with base URL, API key, model mappings
- Pre-configured z.AI GLM template with correct model names
- Profile selector in Settings > Claude > API Profiles
- Clean switching between profiles and direct Anthropic API
- Immediate persistence to prevent data loss on restart

Profile support added to all execution paths:
- Agent service (chat)
- Ideation service
- Auto-mode service (feature agents, enhancements)
- Simple query service (title generation, descriptions, etc.)
- Backlog planning, commit messages, spec generation
- GitHub issue validation, suggestions

Environment variables set when profile is active:
- ANTHROPIC_BASE_URL, ANTHROPIC_AUTH_TOKEN/API_KEY
- ANTHROPIC_DEFAULT_HAIKU/SONNET/OPUS_MODEL
- API_TIMEOUT_MS, CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC

apps/ui/src/components/views/project-settings-view/config/navigation.ts

@@ -1,5 +1,5 @@
 import type { LucideIcon } from 'lucide-react';
-import { User, GitBranch, Palette, AlertTriangle } from 'lucide-react';
+import { User, GitBranch, Palette, AlertTriangle, Bot } from 'lucide-react';
 import type { ProjectSettingsViewId } from '../hooks/use-project-settings-view';
 
 export interface ProjectNavigationItem {
@@ -12,5 +12,6 @@ export const PROJECT_SETTINGS_NAV_ITEMS: ProjectNavigationItem[] = [
   { id: 'identity', label: 'Identity', icon: User },
   { id: 'worktrees', label: 'Worktrees', icon: GitBranch },
   { id: 'theme', label: 'Theme', icon: Palette },
+  { id: 'claude', label: 'Claude', icon: Bot },
   { id: 'danger', label: 'Danger Zone', icon: AlertTriangle },
 ];

apps/ui/src/components/views/project-settings-view/hooks/use-project-settings-view.ts

@@ -1,6 +1,6 @@
 import { useState, useCallback } from 'react';
 
-export type ProjectSettingsViewId = 'identity' | 'theme' | 'worktrees' | 'danger';
+export type ProjectSettingsViewId = 'identity' | 'theme' | 'worktrees' | 'claude' | 'danger';
 
 interface UseProjectSettingsViewOptions {
   initialView?: ProjectSettingsViewId;

apps/ui/src/components/views/project-settings-view/project-claude-section.tsx

@@ -0,0 +1,153 @@
+import { useAppStore } from '@/store/app-store';
+import { useSetupStore } from '@/store/setup-store';
+import { Label } from '@/components/ui/label';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Bot, Cloud, Server, Globe } from 'lucide-react';
+import { cn } from '@/lib/utils';
+import type { Project } from '@/lib/electron';
+
+interface ProjectClaudeSectionProps {
+  project: Project;
+}
+
+export function ProjectClaudeSection({ project }: ProjectClaudeSectionProps) {
+  const {
+    claudeApiProfiles,
+    activeClaudeApiProfileId: globalActiveProfileId,
+    disabledProviders,
+    setProjectClaudeApiProfile,
+  } = useAppStore();
+  const { claudeAuthStatus } = useSetupStore();
+
+  // Get project-level override from project
+  const projectActiveProfileId = project.activeClaudeApiProfileId;
+
+  // Determine effective value for display
+  // undefined = use global, null = explicit direct, string = specific profile
+  const selectValue =
+    projectActiveProfileId === undefined
+      ? 'global'
+      : projectActiveProfileId === null
+        ? 'direct'
+        : projectActiveProfileId;
+
+  // Check if Claude is available
+  const isClaudeDisabled = disabledProviders.includes('claude');
+  const hasProfiles = claudeApiProfiles.length > 0;
+  const isClaudeAuthenticated = claudeAuthStatus?.authenticated;
+
+  // Get global profile name for display
+  const globalProfile = globalActiveProfileId
+    ? claudeApiProfiles.find((p) => p.id === globalActiveProfileId)
+    : null;
+  const globalProfileName = globalProfile?.name || 'Direct Anthropic API';
+
+  const handleChange = (value: string) => {
+    // 'global' -> undefined (use global)
+    // 'direct' -> null (explicit direct)
+    // profile id -> string (specific profile)
+    const newValue = value === 'global' ? undefined : value === 'direct' ? null : value;
+    setProjectClaudeApiProfile(project.id, newValue);
+  };
+
+  // Don't render if Claude is disabled or not available
+  if (isClaudeDisabled || (!hasProfiles && !isClaudeAuthenticated)) {
+    return (
+      <div className="text-center py-12 text-muted-foreground">
+        <Bot className="w-12 h-12 mx-auto mb-3 opacity-50" />
+        <p className="text-sm">Claude not configured</p>
+        <p className="text-xs mt-1">
+          Enable Claude and configure API profiles in global settings to use per-project profiles.
+        </p>
+      </div>
+    );
+  }
+
+  // Get the display text for current selection
+  const getDisplayText = () => {
+    if (selectValue === 'global') {
+      return `Using global setting: ${globalProfileName}`;
+    }
+    if (selectValue === 'direct') {
+      return 'Using direct Anthropic API (API key or Claude Max plan)';
+    }
+    const selectedProfile = claudeApiProfiles.find((p) => p.id === selectValue);
+    return `Using ${selectedProfile?.name || 'custom'} endpoint`;
+  };
+
+  return (
+    <div
+      className={cn(
+        'rounded-2xl overflow-hidden',
+        'border border-border/50',
+        'bg-gradient-to-br from-card/90 via-card/70 to-card/80 backdrop-blur-xl',
+        'shadow-sm shadow-black/5'
+      )}
+    >
+      <div className="p-6 border-b border-border/50 bg-gradient-to-r from-transparent via-accent/5 to-transparent">
+        <div className="flex items-center gap-3 mb-2">
+          <div className="w-9 h-9 rounded-xl bg-gradient-to-br from-brand-500/20 to-brand-600/10 flex items-center justify-center border border-brand-500/20">
+            <Bot className="w-5 h-5 text-brand-500" />
+          </div>
+          <h2 className="text-lg font-semibold text-foreground tracking-tight">
+            Claude API Profile
+          </h2>
+        </div>
+        <p className="text-sm text-muted-foreground/80 ml-12">
+          Override the Claude API profile for this project only.
+        </p>
+      </div>
+
+      <div className="p-6 space-y-4">
+        <div className="space-y-2">
+          <Label className="text-sm font-medium">Active Profile for This Project</Label>
+          <Select value={selectValue} onValueChange={handleChange}>
+            <SelectTrigger className="w-full">
+              <SelectValue placeholder="Select profile" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem value="global">
+                <div className="flex items-center gap-2">
+                  <Globe className="w-4 h-4 text-muted-foreground" />
+                  <span>Use Global Setting</span>
+                  <span className="text-xs text-muted-foreground ml-1">({globalProfileName})</span>
+                </div>
+              </SelectItem>
+              <SelectItem value="direct">
+                <div className="flex items-center gap-2">
+                  <Cloud className="w-4 h-4 text-brand-500" />
+                  <span>Direct Anthropic API</span>
+                </div>
+              </SelectItem>
+              {claudeApiProfiles.map((profile) => (
+                <SelectItem key={profile.id} value={profile.id}>
+                  <div className="flex items-center gap-2">
+                    <Server className="w-4 h-4 text-muted-foreground" />
+                    <span>{profile.name}</span>
+                  </div>
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+          <p className="text-xs text-muted-foreground">{getDisplayText()}</p>
+        </div>
+
+        {/* Info about what this affects */}
+        <div className="text-xs text-muted-foreground/70 pt-2 border-t border-border/30">
+          <p>This setting affects all Claude operations for this project including:</p>
+          <ul className="list-disc list-inside mt-1 space-y-0.5">
+            <li>Agent chat and feature implementation</li>
+            <li>Code analysis and suggestions</li>
+            <li>Commit message generation</li>
+          </ul>
+        </div>
+      </div>
+    </div>
+  );
+}

apps/ui/src/components/views/project-settings-view/project-settings-view.tsx

@@ -5,6 +5,7 @@ import { Button } from '@/components/ui/button';
 import { ProjectIdentitySection } from './project-identity-section';
 import { ProjectThemeSection } from './project-theme-section';
 import { WorktreePreferencesSection } from './worktree-preferences-section';
+import { ProjectClaudeSection } from './project-claude-section';
 import { DangerZoneSection } from '../settings-view/danger-zone/danger-zone-section';
 import { DeleteProjectDialog } from '../settings-view/components/delete-project-dialog';
 import { ProjectSettingsNavigation } from './components/project-settings-navigation';
@@ -84,6 +85,8 @@ export function ProjectSettingsView() {
         return <ProjectThemeSection project={currentProject} />;
       case 'worktrees':
         return <WorktreePreferencesSection project={currentProject} />;
+      case 'claude':
+        return <ProjectClaudeSection project={currentProject} />;
       case 'danger':
         return (
           <DangerZoneSection