fix(electrobun): wizard 7 fixes — validation, GitLab, SSHFS, icons, model dropdown, keyboard nav

- Git Platform: validates repo via git.probe before enabling Next, supports GitHub + GitLab + any git URL
- Template dir configurable in Advanced Settings (template_dir key)
- SSHFS: checks sshfs availability, mountpoint selector when enabled
- CustomDropdown: flip-up when insufficient space below
- 50 Lucide icons (was 24) with categories (AI, Data, DevOps, Security, Media, Comms)
- Model: CustomDropdown from live API, max_tokens as slider, effort only with adaptive thinking
- Keyboard: Escape closes wizard, Tab navigation with :focus-visible rings, source cards navigable

ui-electrobun/src/mainview/wizard-state.ts

@@ -18,6 +18,7 @@ export interface WizardState {
   githubRepo: string;
   selectedTemplate: string;
   templateTargetDir: string;
+  templateOriginDir: string;
   remoteHost: string;
   remoteUser: string;
   remotePath: string;
@@ -25,12 +26,14 @@ export interface WizardState {
   remotePassword: string;
   remoteKeyPath: string;
   remoteSshfs: boolean;
+  remoteSshfsMountpoint: string;
   pathValid: PathState;
   isGitRepo: boolean;
   gitBranch: string;
   gitProbeStatus: ProbeState;
   gitProbeBranches: string[];
   githubInfo: { stars: number; description: string; defaultBranch: string } | null;
+  githubProbeStatus: ProbeState;
   githubLoading: boolean;
   cloning: boolean;
   projectName: string;
@@ -55,10 +58,13 @@ export function getDefaults(groupId: string): WizardState {
   return {
     step: 1, sourceType: 'local', localPath: '', repoUrl: '', cloneTarget: '',
     githubRepo: '', selectedTemplate: '', templateTargetDir: '~/projects',
+    templateOriginDir: '',
     remoteHost: '', remoteUser: '', remotePath: '',
     remoteAuthMethod: 'agent', remotePassword: '', remoteKeyPath: '~/.ssh/id_ed25519',
-    remoteSshfs: false, pathValid: 'idle', isGitRepo: false, gitBranch: '',
-    gitProbeStatus: 'idle', gitProbeBranches: [], githubInfo: null, githubLoading: false,
+    remoteSshfs: false, remoteSshfsMountpoint: '',
+    pathValid: 'idle', isGitRepo: false, gitBranch: '',
+    gitProbeStatus: 'idle', gitProbeBranches: [], githubInfo: null,
+    githubProbeStatus: 'idle', githubLoading: false,
     cloning: false, projectName: '', nameError: '', selectedBranch: '',
     branches: [], useWorktrees: false, selectedGroupId: groupId,
     projectIcon: 'Terminal', projectColor: 'var(--ctp-blue)', shellChoice: 'bash',