feat(ultraplan-local): v1.6.0 — /ultraresearch-local deep research command

Add /ultraresearch-local for structured research combining local codebase
analysis with external knowledge via parallel agent swarms. Produces research
briefs with triangulation, confidence ratings, and source quality assessment.

New command: /ultraresearch-local with modes --quick, --local, --external, --fg.
New agents: research-orchestrator (opus), docs-researcher, community-researcher,
security-researcher, contrarian-researcher, gemini-bridge (all sonnet).
New template: research-brief-template.md.

Integration: --research flag in /ultraplan-local accepts pre-built research
briefs (up to 3), enriches the interview and exploration phases. Planning
orchestrator cross-references brief findings during synthesis.

Design principle: Context Engineering — right information to right agent at
right time. Research briefs are structured artifacts in the pipeline:
ultraresearch → brief → ultraplan --research → plan → ultraexecute.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

examples/optimal-setup/.claude/agents/review-agent.md

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+---
+name: review-agent
+description: |
+  Code review agent that checks for style violations, 
+  potential bugs, and test coverage gaps.
+model: sonnet
+color: green
+isolation: worktree
+tools: ["Read", "Glob", "Grep"]
+---
+
+Review the specified files for:
+1. Style violations per code-style rules
+2. Missing error handling
+3. Untested code paths

examples/optimal-setup/.claude/commands/build.md

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+---
+name: build
+description: Build the project with current branch context
+argument-hint: "[--watch]"
+allowed-tools: Bash, Read
+model: sonnet
+---
+
+Current branch: !`git branch --show-current`
+Status: !`git status --short`
+
+Build the project. If --watch is specified, run in watch mode.

examples/optimal-setup/.claude/keybindings.json

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+[
+  {
+    "key": "shift+enter",
+    "command": "chat:newline"
+  }
+]

examples/optimal-setup/.claude/rules/code-style.md

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+---
+paths: "src/**/*.ts"
+---
+
+# Code Style
+
+- Use explicit return types on all exported functions
+- Prefer `const` over `let`
+- No `any` types — use `unknown` and narrow

examples/optimal-setup/.claude/rules/testing.md

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+---
+paths: "tests/**/*"
+---
+
+# Testing Conventions
+
+- Use `describe`/`it` blocks with clear names
+- One assertion per test where practical
+- Mock external services, not internal modules

examples/optimal-setup/.claude/settings.json

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+{
+  "$schema": "https://cdn.anthropic.com/schemas/claude-code/settings.schema.json",
+  "model": "sonnet",
+  "permissions": {
+    "allow": [
+      "Read",
+      "Glob",
+      "Grep",
+      "Bash(npm test)",
+      "Bash(npm run build)"
+    ],
+    "deny": [
+      "Bash(rm -rf *)"
+    ]
+  },
+  "statusLine": {
+    "enabled": true
+  },
+  "outputStyle": "concise",
+  "worktree": {
+    "symlinkDirectories": [
+      "node_modules"
+    ]
+  },
+  "autoMode": {
+    "enabled": false
+  },
+  "env": {
+    "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "1"
+  }
+}