docs: refresh user-facing docs to match v4.1.1 codebase

Align README.md, CONTRIBUTING.md, and docs/ with the same ground truth used
in the hierarchical AGENTS.md regeneration commit 1e7a7600a:

- README.md: '25+ built-in hooks' was undercounted by ~30 hooks; now reads
  '54+ lifecycle hooks (61 with Team Mode)' to match actual tier composition.
- CONTRIBUTING.md: src/hooks/ '52 hooks across 55 modules' -> '54 base (61 team) across 58 dirs';
  src/tools/ '26 tools across 16 directories' -> '20-39 tools (config-gated)';
  src/features/ '19 feature modules' -> '20 feature modules' (boulder-state, team-mode added).
- docs/reference/features.md: Core-agent order indices were off-by-one;
  Sisyphus 1/Hephaestus 2/Prometheus 3/Atlas 4 -> 0/1/2/3 (matches installAgentSortShim).
- docs/guide/overview.md: Sisyphus model recommendations now mention Kimi K2.6 alongside K2.5
  since K2.6 is the active default fallback in the primary Sisyphus chain
  (see src/shared/model-requirements.ts).

CONTRIBUTING.md

@@ -112,10 +112,10 @@ oh-my-opencode/
 │   ├── index.ts         # Plugin entry (V1 PluginModule, default export)
 │   ├── plugin-config.ts # JSONC multi-level config (Zod v4)
 │   ├── agents/          # 11 agents (Sisyphus, Hephaestus, Oracle, Librarian, Explore, Atlas, Prometheus, Metis, Momus, Multimodal-Looker, Sisyphus-Junior)
-│   ├── hooks/           # 52 lifecycle hooks across 55 dedicated modules
+│   ├── hooks/           # 54 base lifecycle hooks (61 with Team Mode) across 58 dirs
-│   ├── tools/           # 26 tools across 16 directories
+│   ├── tools/           # 20-39 tools across 16 directories (config-gated)
 │   ├── mcp/             # 3 built-in remote MCPs (websearch, context7, grep_app)
-│   ├── features/        # 19 feature modules (background-agent, skill-loader, tmux, MCP-OAuth, etc.)
+│   ├── features/        # 20 feature modules (background-agent, skill-loader, tmux, MCP-OAuth, boulder-state, etc.)
 │   ├── config/          # Zod v4 schema system
 │   ├── shared/          # Cross-cutting utilities
 │   ├── cli/             # CLI: install, run, doctor, mcp-oauth (Commander.js)

README.md

@@ -368,7 +368,7 @@ See [Configuration Documentation](docs/reference/configuration.md).
 - **Sisyphus Agent**: Main orchestrator with Prometheus (Planner) and Metis (Plan Consultant)
 - **Background Tasks**: Configure concurrency limits per provider/model
 - **Categories**: Domain-specific task delegation (`visual`, `business-logic`, custom)
-- **Hooks**: 25+ built-in hooks, all configurable via `disabled_hooks`
+- **Hooks**: 54+ lifecycle hooks (61 with Team Mode), all configurable via `disabled_hooks`
 - **MCPs**: Built-in websearch (Exa), context7 (docs), grep_app (GitHub search)
 - **LSP**: Full LSP support with refactoring tools
 - **Experimental**: Aggressive truncation, auto-resume, and more

docs/guide/overview.md

@@ -83,10 +83,10 @@ Sisyphus is your main orchestrator. He plans, delegates to specialists, and driv
 **Recommended models:**
 
 - **Claude Opus 4.7** — Best overall experience. Sisyphus was built with Claude-optimized prompts.
-- **Kimi K2.5** — Great Claude-like alternative. Many users run this combo exclusively.
+- **Kimi K2.6** / **K2.5** — Great Claude-like alternatives. K2.6 is the current default fallback in the primary Sisyphus chain; many users run K2.6 or the K2.5/K2.6 combo exclusively.
 - **GLM 5** — Solid option, especially via Z.ai.
 
-Sisyphus works best on Claude Opus 4.7, Kimi K2.5, and GLM 5. GPT-5.4 and GPT-5.5 now have dedicated prompt paths, but older GPT models are still a poor fit and should route to Hephaestus instead.
+Sisyphus works best on Claude Opus 4.7, Kimi K2.6 (or K2.5), and GLM 5.1. GPT-5.4 and GPT-5.5 now have dedicated prompt paths, but older GPT models are still a poor fit and should route to Hephaestus instead.
 
 ### Hephaestus: The Legitimate Craftsman
 
@@ -170,7 +170,7 @@ You can override specific agents or categories in your config:
   "$schema": "https://raw.githubusercontent.com/code-yeongyu/oh-my-openagent/dev/assets/oh-my-opencode.schema.json",
 
   "agents": {
-    // Main orchestrator: Claude Opus or Kimi K2.5 work best
+    // Main orchestrator: Claude Opus or Kimi K2.6 work best
     "sisyphus": {
       "model": "kimi-for-coding/k2p5",
       "ultrawork": { "model": "anthropic/claude-opus-4-7", "variant": "max" },
@@ -220,7 +220,7 @@ You can override specific agents or categories in your config:
 **Claude-like models** (instruction-following, structured output):
 
 - Claude Opus 4.7, Claude Haiku 4.5
-- Kimi K2.5 — behaves very similarly to Claude
+- Kimi K2.6 / K2.5 — behaves very similarly to Claude
 - GLM 5 — Claude-like behavior, good for broad tasks
 
 **GPT models** (explicit reasoning, principle-driven):

docs/reference/features.md

@@ -6,7 +6,7 @@ Oh-My-OpenAgent provides 11 specialized AI agents. Each has distinct expertise,
 
 ### Core Agents
 
-Core-agent tab cycling is deterministic via injected runtime order field. The fixed priority order is Sisyphus (order: 1), Hephaestus (order: 2), Prometheus (order: 3), and Atlas (order: 4). Remaining agents follow after that stable core ordering.
+Core-agent tab cycling is deterministic via injected runtime order field. The fixed priority order is Sisyphus (order: 0), Hephaestus (order: 1), Prometheus (order: 2), and Atlas (order: 3). Remaining agents follow after that stable core ordering.
 
 | Agent                 | Model              | Purpose                                                                                                                                                                                                                                                                                                                                                          |
 | --------------------- | ------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |