feat(kilo-mcp): enable global mode support

[sirmacik]

Summary

Kilo CLI reads global MCP from ~/.config/kilo/kilo.json (or
kilo.jsonc). The path machinery in KiloMcp.getSettablePaths already
routes global mode to that location — only the factory metadata flag
in McpProcessor was gating it off.

Kilo is an OpenCode fork and uses an identical native MCP schema
(type: local|remote, environment instead of env, enabled
instead of disabled), so global parity with the opencode target is
the natural state.

Before

$ rulesync generate -g
Target 'kilo' does not support the feature 'mcp'. Skipping.

Users running rulesync generate -g to manage global MCP across the
opencode family had to keep a separate Kilo-only source file, or
post-process with jq to copy the .mcp block from opencode.json
into kilo.json (since the schemas match).

After

~/.config/kilo/kilo.json is generated alongside opencode.json,
config.toml (codex), settings.json (gemini), and .claude.json
(claude code) on every rulesync generate -g.

Changes

• src/features/mcp/mcp-processor.ts: flip supportsGlobal: false → true
  in the Kilo factory metadata.
• src/features/mcp/mcp-processor.test.ts: assert kilo is present in
  both project- and global-mode tool-target lists.
• docs/reference/supported-tools.md: Kilo MCP cell ✅ → ✅ 🌏.
• skills/rulesync/supported-tools.md: synced via sync-skill-docs.ts.

Tests

All 75 existing kilo-mcp tests pass (including the existing global
fromFile / fromRulesyncMcp / preserve-non-mcp-properties cases at lines
283-456). All 46 mcp-processor tests pass. Added 1 new test asserting
kilo is in the global target list. pnpm cicheck clean.

Risk

Very low — pure flag flip. The implementation in KiloMcp already
supports global mode and is already covered by tests. The fix is just
enabling the processor to route to it.

[github-actions]

Thank you for your contribution! Unfortunately, you currently have 3 open PRs (including this one), which exceeds the limit of 2 for external contributors.

Please wait for an existing PR to be reviewed/merged, or close one before opening a new one. See CONTRIBUTING.md for details.

[sirmacik]

Closing for now — upstream contributor PR limit is 2 open. Will reopen this one (and PR 4) once one of #1622 / #1623 lands. Branch is intact on the fork; no rebase needed.

Tracker so this doesn't get lost:

• PR 1 fix(codexcli-mcp): strip empty env tables from generated config #1622 — fix(codexcli-mcp): strip empty env tables
• PR 2 feat(codexcli-mcp): support codex-specific env_vars passthrough #1623 — feat(codexcli-mcp): env_vars passthrough
• (this) PR 3 — feat(kilo-mcp): enable global mode — paused
• (queued) PR 4 — fix(kilo-subagent): default mode all — paused