[0.1.7] Make check/fix RBS-aware via auto-detect sig/rbs gem (cli_overrides)

[unurgunite]

Description

Release 0.1.7: RBS-aware inspections end-to-end plus a more honest error UX.

This release branch collects 15 squash PRs (#44, #47–#60) on top of v0.1.6. The plugin now auto-detects RBS (sig/, Gemfile, docscribe.yml), forwards it to both the daemon and the CLI fallback, validates malformed YARD types even without RBS, fixes Update Types to work per-file, and surfaces daemon failures instead of showing a clean 0.

Merged into v0.1.7:

• fix/rbs-aware-check-fix ([0.1.7] Make check/fix RBS-aware via auto-detect sig/rbs gem (cli_overrides) #44) — check/fix forward --rbs/--rbs-collection via cli_overrides
• fix/doctor-rbs-status ([0.1.7] Show RBS status in Doctor (sig/rbs gem/collection) #47, [0.1.7] Show RBS status in Doctor (sig/rbs gem/collection) #48) — Doctor shows sig/, rbs gem, rbs.enabled
• fix/daemon-update-types ([0.1.7] Handle update_types via daemon with CLI fallback for old gem #49) — update_types via daemon with CLI fallback for old gems
• fix/doctor-version-stale ([0.1.7] Fix Doctor stale version cache (check Gemfile.lock mtime) #51) — version cache keyed on Gemfile.lock mtime
• feature/mcp-api-for-testing ([0.1.7] Add MCP toolset for testing DocScribe actions via JetBrains MCP #50) — MCP toolset (6 tools) for automated testing
• fix/rbs-underline-yard ([0.1.7] Underline YARD line for RBS type mismatches (not def) #52) — RBS mismatches underline the YARD line, not def
• fix/rbs-safe-fix-ux ([0.1.7] Fix RBS safe fix UX: show Incorrect type and use aggressive for RBS #53) — safe fix uses aggressive for RBS types
• fix/mcp-no-tools ([0.1.7] Fix MCP toolset not loading (add @McpTool and mcpServer depends) #54) — MCP toolset loading fix
• fix/rbs-daemon-iteration ([0.1.7] Fix RBS daemon check and update_types exit 1 #55) — RBS daemon check and update_types exit 1
• feature/yard-type-warnings ([0.1.7] Added support for new Docscribe API #56) — InvalidType validation without RBS + setting
• fix/annotator-error-display ([0.1.7] Fix error display when docscribe fails and trailing literal suppresses warnings #57) — failures shown as errors/balloons, not cached as clean
• fix/yard-validation-cleanup ([0.1.7] Fix yard validation cleanup and sync collectRubyFiles #58) — removed Kotlin-side validator duplicate, synced collectRubyFiles with CLI filter
• feature/rbs-file-scoped-update ([0.1.7] Make Update Types file-scoped and distinguish RBS vs validator #59) — file-scoped Update Types, source: rbs|infer|syntax fix routing
• feature/update-md-files ([0.1.7] Updated md files #60) — plugin.xml change-notes for 0.1.6/0.1.7, CHANGELOG, README

Compatibility: new API (--validate-types, source, file-scoped update_types) requires docscribe >= 1.6.2; older gems fall back to CLI.

Checklist

• Tests pass (./gradlew test)
• Formatting clean (./gradlew spotlessCheck)
• Static analysis clean (./gradlew detekt)
• Plugin verified (./gradlew verifyPlugin)
• CHANGELOG updated (if applicable)