PLAN mode recommended_act_agent ignores intent-based recommendation

[JeremyDev87]

Summary

• Fix PLAN mode recommended_act_agent always returning project config value instead of analyzing prompt intent
• Add isRecommendation flag to StrategyContext so ActAgentStrategy.resolve() skips project config priority and uses intent pattern analysis first
• Add missing intent patterns for frontend-developer (13 patterns) and devops-engineer (10 patterns) that were previously unreachable via intent analysis

Problem

When parse_mode is called in PLAN mode, getActAgentRecommendation() simulates ACT mode resolution. However, ActAgentStrategy.resolve() always returned the project config agent (priority 3) before reaching intent pattern analysis (priority 5-11):

Prompt	Expected	Actual (before fix)
"PLAN design API"	backend-developer	agent-architect
"PLAN build UI"	frontend-developer	agent-architect
"PLAN setup CI/CD"	devops-engineer	agent-architect

Solution

Priority change in recommendation mode

When isRecommendation=true:

1. Explicit request (unchanged)
2. PLAN mode recommended agent (unchanged)
3. Project config → skipped
4. Intent pattern analysis (unchanged, now reachable)
5. Context-based inference (unchanged)
6. Project config (moved here as late fallback)
7. Default fallback (unchanged)

When isRecommendation is unset/false, existing ACT mode behavior is preserved.

New intent patterns

• frontend-developer: React, Vue, Angular, Svelte, Next.js, UI components, CSS/Tailwind, responsive design, state management
• devops-engineer: GitHub Actions, Jenkins, ArgoCD, Docker, CI/CD pipelines, deployment automation, monitoring

Frontend patterns are scoped to web-specific contexts to avoid overlap with mobile-developer patterns.

Changed files

• resolution-strategy.interface.ts — Add isRecommendation?: boolean to StrategyContext
• act-agent.strategy.ts — Skip project config when isRecommendation, add late fallback
• primary-agent-resolver.ts — Pass isRecommendation param through resolve()
• keyword.service.ts — Pass isRecommendation: true in getActAgentRecommendation()
• frontend.patterns.ts — New file with 13 frontend intent patterns
• devops.patterns.ts — New file with 10 devops intent patterns
• intent-pattern-checks.ts — Register frontend and devops patterns

Test plan

• Recommendation mode: verify isRecommendation skips project config
• Recommendation mode: verify project config used as late fallback when no intent matches
• Recommendation mode: verify explicit request and recommendedActAgent still take priority
• Frontend-developer patterns: React, Vue.js, UI component, Tailwind, generic frontend
• DevOps-engineer patterns: GitHub Actions, Jenkins, CI/CD pipeline, Docker, generic devops
• Issue PLAN mode recommended_act_agent ignores intent-based recommendation due to project config override #360 scenarios: "design API" → backend, "build UI" → frontend, "setup CI/CD" → devops
• No regression on existing 2790 tests
• TypeScript build passes

Fixes #360