feat: always display username@hostname in starship prompt

Configure starship to always display username and hostname (not just during SSH sessions) for better VM identification clarity.

This change complements the vm-infra configurable username feature (maxrantil/vm-infra#117, PR maxrantil/vm-infra#118).

Changes:
- Added [username] section with show_always = true (yellow for users, red for root)
- Added [hostname] section with ssh_only = false (green with @ prefix)
- Updated format string to include $username$hostname
- Trim domain suffix for cleaner display

Benefits:
- Multi-VM clarity: Instantly see which VM you're in
- Security: Root user shown in red (warning indicator)
- Universal: Works in all contexts (SSH, console, tmux)

Author: maxrantil

SESSION_HANDOVER.md

@@ -1,76 +1,109 @@
-# Session Handoff: VM Issues - Gruvbox, Starship, Browser Fixes
+# Session Handoff: Starship Always-Show Username/Hostname Feature
 
-**Date**: 2025-11-17
-**PR**: maxrantil/dotfiles#74
-**Branch**: fix/vm-issues-gruvbox-starship-browser
+**Date**: 2025-11-18
+**PR**: maxrantil/dotfiles#75
+**Branch**: feat/starship-always-show-username
 
 ## ✅ Completed Work
 
-### Issues Fixed
-1. **Gruvbox colorscheme error in VMs**: Disabled gruvbox for minimal VM setup
-2. **Starship git_status warnings**: Fixed format string syntax
-3. **BROWSER not found for gh CLI**: Auto-detect available browser
-
-### Changes Implemented
-1. **init.vim**:
-   - Commented out gruvbox plugin line
-   - Removed gruvbox configuration
-   - Added comment explaining it's disabled for minimal VM setup
-
-2. **starship.toml**:
-   - Fixed format strings to consistently use `${count}` placeholder
-   - Updated conflicted, stashed, renamed indicators
+### Feature Implemented
+**Starship Prompt Enhancement**: Configured starship to always display `username@hostname` in the prompt (not just during SSH sessions).
+
+### Changes Made
+1. **starship.toml**:
+   - Added `[username]` section with `show_always = true`
+     - Yellow for regular users
+     - Red for root (warning indicator)
+   - Added `[hostname]` section with `ssh_only = false`
+     - Green color with `@` prefix
+     - Trim domain suffix (`.local`)
+   - Updated format string to include `$username$hostname`
+
+### Context & Integration
+This change complements the vm-infra configurable username feature:
+- vm-infra Issue: maxrantil/vm-infra#117
+- vm-infra PR: maxrantil/vm-infra#118
+- VMs now provisioned with configurable usernames and hostnames
+- Prompt shows `developer@work-vm-1` or `testuser@test-vm-2` for instant context
+
+### Before/After
+**Before**:
+```
+~/projects
+❯
+```
 
-3. **.zshenv**:
-   - Changed from hardcoded `BROWSER="firefox"`
-   - Now auto-detects: chromium-browser > firefox > chromium > xdg-open
-   - Prioritizes chromium-browser for VM usage
+**After**:
+```
+┌───────────────────>
+│developer@work-vm-1~/projects main
+└─>❯
+```
 
-### Testing Results
-✅ init.vim: No errors when opening vim
-✅ starship: No warnings in git directories
-✅ BROWSER: Auto-detects available browser (falls back gracefully)
+### Benefits
+- **Multi-VM Clarity**: Instantly see which VM you're in
+- **Security**: Root user shown in red (immediate warning)
+- **Universal**: Works in all contexts (SSH, console, tmux)
+
+### Agent Validation Status
+- ✅ **ux-accessibility-i18n-agent**: APPROVED (4.5/5)
+  - Excellent UX for multi-VM workflows
+  - Color choices appropriate and accessible
+  - Screen reader compatible
+  - Recommends contrast verification testing (not blocking)
+- ✅ **code-quality-analyzer**: APPROVED (4.6/5)
+  - Valid starship configuration
+  - Excellent documentation
+  - Negligible performance impact
+  - Minor cosmetic improvements suggested (optional)
+- ✅ **documentation-knowledge-manager**: Session handoff now complete
 
 ## 🎯 Current Project State
 
-**Tests**: ✅ All pre-commit hooks passing locally
-**Branch**: fix/vm-issues-gruvbox-starship-browser
-**CI/CD**: 🔄 Running (PR #74)
-**Status**: Ready for merge after session handoff doc
+**Tests**: ✅ All pre-commit hooks passing
+**Branch**: feat/starship-always-show-username
+**CI/CD**: 🔄 Running (PR #75) - session handoff doc now updated
+**Status**: Ready for merge after CI passes
+
+### File Changes
+- **Modified**: `starship.toml` (+20 lines, -1 line)
+  - Added [username] section
+  - Added [hostname] section
+  - Updated format string
 
 ## 📋 Next Session Priorities
 
 **Immediate Next Steps:**
-1. Merge PR #74 after CI passes
-2. Test in VM to verify fixes work
-3. Document X11 forwarding setup for gh CLI
-4. Consider adding chromium-browser to Ansible playbook
-
-**VM Browser Setup:**
-For gh CLI web auth to work:
-```bash
-# Install chromium
-sudo apt install chromium-browser
-
-# SSH with X11 forwarding
-ssh -X -i ~/.ssh/vm_key user@vm-ip
-
-# Now gh auth login will open browser on host
-```
+1. Merge PR #75 after CI passes (all checks should be green now)
+2. Test in VM to verify prompt display with configurable usernames
+3. Validate integration with vm-infra PR #118 deployment
+4. Monitor for any prompt performance impact
+
+**Optional Enhancements** (from code-quality-analyzer):
+- Remove redundant `disabled = false` lines (cosmetic)
+- Add test coverage for root user styling
+- Add test coverage for hostname domain trimming
+- Update README.md to document prompt behavior
+
+**Future Considerations:**
+- Test with various username/hostname combinations in vm-infra
+- Evaluate if additional starship customizations needed for VM workflows
+- Consider contrast verification testing for accessibility
 
 ## 📝 Startup Prompt for Next Session
 
-Read CLAUDE.md to understand our workflow, then verify dotfiles PR #74 CI status and merge if green.
+Read CLAUDE.md to understand our workflow, then merge dotfiles PR #75 (starship always-show username/hostname feature) after CI validation.
 
-**Immediate priority**: Merge maxrantil/dotfiles#74 after CI passes
-**Context**: Fixed three VM issues - gruvbox errors, starship warnings, browser detection
-**Reference docs**: SESSION_HANDOVER.md (this file)
-**Ready state**: PR pushed, awaiting CI validation
+**Immediate priority**: Merge maxrantil/dotfiles#75 after CI passes
+**Context**: Starship now always displays username@hostname for multi-VM clarity
+**Reference docs**: PR #75 description, vm-infra#117, vm-infra#118, SESSION_HANDOVER.md
+**Ready state**: All tests passing, simple config change, agent-validated
 
-**Expected scope**: Merge PR, test in VM, update Ansible if needed
+**Expected scope**: Merge PR, test prompt display in VM, validate vm-infra integration works as expected
 
 ## 📚 Key Reference Documents
-- maxrantil/dotfiles#74 (this PR)
-- init.vim (gruvbox disabled)
-- starship.toml (git_status fixed)
-- .zshenv (browser auto-detection)
+- maxrantil/dotfiles#75 (this PR - starship username/hostname always-show)
+- maxrantil/vm-infra#117 (issue - configurable VM usernames)
+- maxrantil/vm-infra#118 (PR - implementation of configurable usernames)
+- `starship.toml:14-31` (username/hostname configuration added)
+- `STARSHIP_CONFIG_NOTE.md` (in vm-infra repo - implementation guide)

starship.toml

@@ -3,14 +3,33 @@
 
 format = """
 [┌───────────────────>](bold green)
-[│](bold green)$directory$git_branch$git_status
+[│](bold green)$username$hostname$directory$git_branch$git_status
 [└─>](bold green) """
 
 [directory]
 style = "blue bold"
 truncation_length = 3
 truncate_to_repo = true
 
+# ===================================
+# USERNAME - Always show for VM clarity
+# ===================================
+[username]
+show_always = true                    # Show even when not SSH'd in
+format = "[$user]($style)"           # Format: username only
+style_user = "bold yellow"           # Yellow for regular users
+style_root = "bold red"              # Red for root (warning!)
+disabled = false
+
+# ===================================
+# HOSTNAME - Always show for VM clarity
+# ===================================
+[hostname]
+ssh_only = false                     # Show even when not SSH'd in
+format = "[@$hostname](bold green) " # Format: @hostname with space
+trim_at = "."                        # Remove domain suffix
+disabled = false
+
 [git_branch]
 symbol = " "
 style = "bold purple"