feat: add Trae IDE support as a new agent (#1817)

* feat: add Trae IDE support as a new agent

Add Trae (https://www.trae.ai/) as a supported AI agent in spec-kit.
Trae is an IDE-based agent that uses .trae/rules/ directory for
project-level rules in Markdown format.

Changes across 9 files:
- src/specify_cli/__init__.py: Add trae to AGENT_CONFIG (IDE-based,
  .trae/ folder, rules subdir, no CLI required)
- src/specify_cli/extensions.py: Add trae to CommandRegistrar.AGENT_CONFIGS
  (.trae/rules, markdown format, .md extension)
- README.md: Add Trae to supported agents table, CLI examples, and
  --ai option description
- .github/workflows/scripts/create-release-packages.sh: Add trae to
  ALL_AGENTS array and build case statement
- .github/workflows/scripts/create-release-packages.ps1: Add trae to
  AllAgents array and switch statement
- .github/workflows/scripts/create-github-release.sh: Add trae template
  zip files to release assets
- scripts/bash/update-agent-context.sh: Add TRAE_FILE, trae case in
  update function, and auto-detect block
- scripts/powershell/update-agent-context.ps1: Add TRAE_FILE, ValidateSet
  entry, switch case, and auto-detect block
- tests/test_agent_config_consistency.py: Add 8 consistency tests for
  trae following established kimi/tabnine patterns

* fix: correct Generate-Commands parameter names for trae in PowerShell release script

Fix incorrect parameter names in the trae case of Build-Variant:
- -Format -> -Extension
- -ArgsToken -> -ArgFormat
- -OutDir -> -OutputDir

These now match the Generate-Commands function signature and all other
agent entries in the script.

Co-authored-by: Copilot <copilot@github.com>

* Update release packaging scripts and agent docs

* Update Agent.md

* Restore format

* Adjust order

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Unused

* fix: add TRAE_FILE to update_all_existing_agents() for auto-detect support

Add missing update_if_new call for TRAE_FILE in the bash
update-agent-context.sh script's update_all_existing_agents()
function, matching the PowerShell implementation.

This ensures running the script without arguments will correctly
auto-detect and update existing Trae agent files.

* Add configuration for 'trae' in agents.py

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Refactor trae configuration test for clarity

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Update update-agent-context.sh

* Fix formatting in update-agent-context.sh

---------

Co-authored-by: root <root@g340-cd52-700-60f9-5561-211-6c32.byted.org>
Co-authored-by: root <root@g340-cd52-700-c3d1-c735-796-4b9e.byted.org>
Co-authored-by: Copilot <copilot@github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

.github/workflows/scripts/create-release-packages.ps1

@@ -14,7 +14,7 @@
 
 .PARAMETER Agents
     Comma or space separated subset of agents to build (default: all)
-    Valid agents: claude, gemini, copilot, cursor-agent, qwen, opencode, windsurf, codex, kilocode, auggie, roo, codebuddy, amp, kiro-cli, bob, qodercli, shai, tabnine, agy, vibe, kimi, generic
+    Valid agents: claude, gemini, copilot, cursor-agent, qwen, opencode, windsurf, codex, kilocode, auggie, roo, codebuddy, amp, kiro-cli, bob, qodercli, shai, tabnine, agy, vibe, kimi, trae, generic
 
 .PARAMETER Scripts
     Comma or space separated subset of script types to build (default: both)
@@ -454,6 +454,11 @@ function Build-Variant {
             New-Item -ItemType Directory -Force -Path $skillsDir | Out-Null
             New-KimiSkills -SkillsDir $skillsDir -ScriptVariant $Script
         }
+        'trae' {
+            $rulesDir = Join-Path $baseDir ".trae/rules"
+            New-Item -ItemType Directory -Force -Path $rulesDir | Out-Null
+            Generate-Commands -Agent 'trae' -Extension 'md' -ArgFormat '$ARGUMENTS' -OutputDir $rulesDir -ScriptVariant $Script
+        }
         'generic' {
             $cmdDir = Join-Path $baseDir ".speckit/commands"
             Generate-Commands -Agent 'generic' -Extension 'md' -ArgFormat '$ARGUMENTS' -OutputDir $cmdDir -ScriptVariant $Script
@@ -470,7 +475,7 @@ function Build-Variant {
 }
 
 # Define all agents and scripts
-$AllAgents = @('claude', 'gemini', 'copilot', 'cursor-agent', 'qwen', 'opencode', 'windsurf', 'codex', 'kilocode', 'auggie', 'roo', 'codebuddy', 'amp', 'kiro-cli', 'bob', 'qodercli', 'shai', 'tabnine', 'agy', 'vibe', 'kimi', 'generic')
+$AllAgents = @('claude', 'gemini', 'copilot', 'cursor-agent', 'qwen', 'opencode', 'windsurf', 'codex', 'kilocode', 'auggie', 'roo', 'codebuddy', 'amp', 'kiro-cli', 'bob', 'qodercli', 'shai', 'tabnine', 'agy', 'vibe', 'kimi', 'trae', 'generic')
 $AllScripts = @('sh', 'ps')
 
 function Normalize-List {