chore: upgrade google.golang.org/adk to v2.0.0

[yanivmn]

No description provided.

[Copilot]

Pull request overview

Upgrades the Go runtime integration with Google ADK from google.golang.org/adk v1.4.0 to google.golang.org/adk/v2 v2.0.0, updating imports and callback/context types across kagent’s ADK-facing packages.

Changes:

• Bump dependency from google.golang.org/adk to google.golang.org/adk/v2 (go.mod/go.sum).
• Update Go code to new v2 import paths and context/callback signatures (e.g., ToolContext → Context in tool handlers/callbacks).
• Add a design EP draft describing future support for ADK workflow agent types.

Reviewed changes

Copilot reviewed 37 out of 38 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
go/go.mod	Switch dependency to google.golang.org/adk/v2 v2.0.0.
go/go.sum	Update module sums for ADK v2.
go/adk/pkg/tools/skills.go	Migrate ADK imports and tool handler context type to v2.
go/adk/pkg/tools/share_tools.go	Migrate ADK imports and handler context type to v2.
go/adk/pkg/tools/remote_a2a_tool.go	Migrate ADK imports and tool handler context type to v2.
go/adk/pkg/tools/ask_user.go	Migrate ADK imports and tool handler context type to v2.
go/adk/pkg/telemetry/tracing.go	Update ADK telemetry import to v2.
go/adk/pkg/telemetry/attributes.go	Update ADK model import to v2.
go/adk/pkg/telemetry/attributes_test.go	Update ADK model import to v2 in tests.
go/adk/pkg/sts/plugin.go	Update ADK agent/plugin imports to v2.
go/adk/pkg/sts/plugin_test.go	Update ADK imports and fake InvocationContext to satisfy v2 interfaces.
go/adk/pkg/session/session.go	Update ADK session import to v2.
go/adk/pkg/session/session_test.go	Update ADK session import to v2 in tests.
go/adk/pkg/session/local_session.go	Update ADK session import to v2.
go/adk/pkg/runner/adapter.go	Update ADK runner/session/tool/memory/plugin imports to v2.
go/adk/pkg/models/sapaicore_adk.go	Update ADK model import to v2.
go/adk/pkg/models/sapaicore_adk_test.go	Update ADK model import to v2 in tests.
go/adk/pkg/models/openai_adk.go	Update ADK model import to v2.
go/adk/pkg/models/ollama_adk.go	Update ADK model import to v2.
go/adk/pkg/models/bedrock.go	Update ADK model import to v2.
go/adk/pkg/models/anthropic_adk.go	Update ADK model import to v2.
go/adk/pkg/memory/save_memory_tool.go	Update ADK imports and tool handler context type to v2.
go/adk/pkg/memory/kagent_service.go	Update ADK memory/model/session imports to v2.
go/adk/pkg/memory/kagent_service_test.go	Update ADK memory/session imports to v2 in tests.
go/adk/pkg/mcp/registry.go	Update ADK tool/mcptoolset imports to v2.
go/adk/pkg/app/app.go	Update ADK agent import to v2.
go/adk/pkg/agent/createllm_test.go	Update ADK imports to v2 in tests.
go/adk/pkg/agent/approval.go	Update ADK imports and callback context type to v2.
go/adk/pkg/agent/agent.go	Update ADK imports and tool callback context types to v2.
go/adk/pkg/a2a/hitl.go	Update ADK toolconfirmation import to v2.
go/adk/pkg/a2a/executor.go	Update ADK agent/runner/server imports to v2.
go/adk/pkg/a2a/converter.go	Update ADK server/session imports to v2.
go/adk/pkg/a2a/converter_test.go	Update ADK server import to v2 in tests.
go/adk/pkg/a2a/consts.go	Update ADK server import to v2.
go/adk/pkg/a2a/agentcard.go	Update ADK agent/server imports to v2.
go/adk/examples/oneshot/main.go	Update ADK imports to v2 in example.
go/adk/examples/byo/main.go	Update ADK imports to v2 in example.
design/EP-XXXX-adk-agent-types.md	Add design EP draft tied to ADK v2 workflow agent types.

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[EItanya]

Is this design doc relevant to this PR?

[yanivmn]

There are two commits to this PR.

1. Package version upgrade and adoption
2. design to support additional agent types for ADK workflows

[EItanya]

Can we separate them? I'm happy to merge the bump, but would like time to look through the design

[yanivmn]

sure. will do