mcp_dart 2.3.0-dev.2

What's Changed

• Update conformance alpha5 and TS RC interop by @leehack in #289
• Refresh alpha6 conformance coverage by @leehack in #290
• Fix pub.dev WASM platform score by @leehack in #292
• Sync main platform support into 2026 RC by @leehack in #293
• Update conformance alpha7 baseline by @leehack in #291
• fix: return subscription listen close metadata by @leehack in #294
• chore(deps): bump hono from 4.12.18 to 4.12.23 in /test/interop/ts in the npm_and_yarn group across 1 directory by @dependabot[bot] in #278
• chore(deps): bump the npm_and_yarn group across 1 directory with 2 updates by @dependabot[bot] in #296
• chore: clean up example analysis and 2026 previews by @leehack in #295
• docs: clarify TypeScript alpha interop blocker by @leehack in #297
• test: update 2026 interop and conformance pins by @leehack in #298
• test: update conformance to alpha.9 by @leehack in #300
• test: update 2026 TypeScript interop to beta.2 by @leehack in #301
• docs: align RC conformance and interop pins by @leehack in #302
• test: expand TS beta server input_required interop by @leehack in #303
• fix(2026): align URL elicitation draft schema by @leehack in #304
• test(mcp-2026): cover request metadata isolation by @leehack in #305
• Harden MCP 2026 day-0 release readiness by @leehack in #307
• Add MCP 2026 release readiness monitor by @leehack in #308
• Polish MCP 2026 release preparation by @leehack in #309
• feat(protocol): default development branch to MCP 2026 by @leehack in #306
• Prepare 2.3.0-dev.2 SDK and CLI preview by @leehack in #310
• Harden MCP spec coverage and release validation by @leehack in #311

Full Changelog: mcp_dart_cli-v0.2.0-dev.1...v2.3.0-dev.2