Task: Removed kai subcommand

[rspurgeon]

Summary

• Remove the kongctl kai command registration and the Kai command package.
• Delete the supporting internal/kai implementation, tests, TUI, storage, rendering, and API spec files.
• Update README theme documentation and keep tableview markdown previews working without depending on the Kai package.
• Run go mod tidy and required Go 1.26 modernization cleanup.

Validation

• go fix ./...
• make format
• make build
• make lint
• make test
• make test-integration
• git grep confirmed no remaining Kai command/package references.

Closes #892

[Copilot]

Pull request overview

Removes the hidden/experimental kongctl kai subcommand and all supporting Kai implementation code, while keeping other interactive TUI features (notably kongctl view markdown previews) working independently of the removed Kai packages.

Changes:

• Removed Kai command registration (verbs.Kai) and deleted the internal/cmd/root/verbs/kai command implementation.
• Deleted the entire internal/kai implementation surface (API client, TUI, storage, rendering, specs, and tests).
• Reworked markdown rendering in tableview to avoid depending on internal/kai/render, plus minor Go 1.26 modernizations (e.g., slices.Contains, reflect.TypeFor, reflect.Pointer, new(v) pointers).

Reviewed changes

Copilot reviewed 36 out of 38 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
internal/konnect/helpers/portals.go	Switches pagination pointer fields to new(...) style pointers.
internal/konnect/helpers/api_versions.go	Updates pagination request fields to use new(...).
internal/konnect/helpers/api_publications.go	Updates pagination request fields to use new(...).
internal/konnect/helpers/api_implementations.go	Updates pagination request fields to use new(...).
internal/kai/tui/chat.go	Deleted (removes Kai interactive TUI).
internal/kai/tasks_test.go	Deleted (removes Kai task streaming tests).
internal/kai/tasks.go	Deleted (removes Kai tasks API client).
internal/kai/storage/storage_test.go	Deleted (removes Kai session storage tests).
internal/kai/storage/storage.go	Deleted (removes Kai session storage implementation).
internal/kai/render/render.go	Deleted (removes Kai markdown renderer wrapper).
internal/kai/logger.go	Deleted (removes Kai context logging helpers).
internal/kai/errors.go	Deleted (removes Kai transient error helpers).
internal/kai/chat_test.go	Deleted (removes Kai chat/session client tests).
internal/kai/chat.go	Deleted (removes Kai chat/session client).
internal/kai/agent_v1.yaml	Deleted (removes Kai agent API spec).
internal/declarative/state/client_pagination_test.go	Replaces local stringPtr/boolPtr helpers with new(...).
internal/declarative/resources/portal_identity_provider_test.go	Replaces local pointer helper with new(...).
internal/declarative/resources/explain.go	Uses slices.Contains and new(...) pointers; removes local boolPtr.
internal/declarative/resources/event_gateway_produce_policy.go	Simplifies membership checks with slices.Contains.
internal/declarative/resources/event_gateway_consume_policy.go	Simplifies membership checks with slices.Contains.
internal/declarative/planner/portal_child_test.go	Replaces local generic ptr helper with new(...).
internal/declarative/planner/event_gateway_produce_policy_planner_test.go	Removes local ptr helpers in favor of new(...).
internal/declarative/planner/event_gateway_consume_policy_planner.go	Uses reflect.Value.Fields() iteration (Go 1.26).
internal/declarative/planner/env_placeholders.go	Simplifies candidate checks with slices.Contains; updates pointer kind handling.
internal/declarative/loader/validator_test.go	Replaces local stringPtr helper with new(...).
internal/declarative/loader/env_validation.go	Uses reflect.TypeFor + Type.Fields() and reflect.Pointer (Go 1.26).
internal/declarative/loader/env_sources.go	Uses reflect.TypeFor and reflect.Pointer (Go 1.26).
internal/declarative/executor/env.go	Uses reflect.Pointer and reflect.TypeFor (Go 1.26).
internal/declarative/common/env_redaction.go	Uses reflect.Pointer and reflect.TypeFor (Go 1.26).
internal/cmd/root/verbs/verbs.go	Removes the Kai verb constant.
internal/cmd/root/verbs/kai/kai_test.go	Deleted (removes Kai CLI tests).
internal/cmd/root/verbs/kai/kai.go	Deleted (removes Kai CLI implementation).
internal/cmd/root/verbs/dump/declarative_children_test.go	Replaces local ptr helpers with new(...).
internal/cmd/root/root.go	Removes Kai command registration from root command initialization.
internal/cmd/root/products/konnect/eventgateway/produce-policies_test.go	Replaces local ptr helpers with new(...).
internal/cmd/output/tableview/tableview.go	Inlines markdown rendering via glamour to avoid internal/kai/render dependency.
go.sum	Drops heredoc checksums no longer needed after Kai removal.
README.md	Updates theme documentation wording/wrapping to remove Kai mention.

[rspurgeon]

cc @johnharris85 for visibility