Remove gRPC implementation

[dkhalife]

Will proceed with the REST & Websocket implementations

[codecov]

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✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Removes the legacy gRPC/protobuf implementation from Task Wizard to proceed with the REST + WebSocket architecture (simplifying both backend and frontend and dropping gRPC-Web support).

Changes:

• Deleted protobuf contract files and proto code generation scripts.
• Removed generated gRPC client/server code and related dependencies (TS + Go).
• Updated API server HTTP wiring and documentation to reflect the HTTP/WebSocket direction.

Reviewed changes

Copilot reviewed 28 out of 30 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
proto/user.proto	Removed user-related protobuf message definitions.
proto/task_service.proto	Removed gRPC service definitions (Task/Label/User/Token/Auth).
proto/task.proto	Removed task-related protobuf message definitions.
proto/label.proto	Removed label-related protobuf message definitions.
proto/common.proto	Removed shared protobuf enums/messages (frequency/notifications/scopes).
proto/generate.ps1	Removed proto generation orchestrator script.
proto/generate-ts.ps1	Removed TypeScript gRPC client generation script.
proto/generate-go.ps1	Removed Go protobuf/gRPC generation script.
frontend/package.json	Dropped grpc-web / ts-proto / bufbuild protobuf dependencies.
frontend/yarn.lock	Updated lockfile to reflect removed gRPC/protobuf dependencies.
frontend/src/grpc/client.ts	Removed gRPC-Web client implementation.
frontend/src/grpc/common.ts	Removed generated TS protobuf types/helpers for common.proto.
frontend/src/grpc/label.ts	Removed generated TS protobuf types/helpers for label.proto.
frontend/src/grpc/task_service.ts	Removed generated TS service descriptors for gRPC services.
frontend/src/grpc/user.ts	Removed generated TS protobuf types/helpers for user.proto.
apiserver/main.go	Dropped h2c/http2 handler wiring and served Gin directly over net/http.
apiserver/go.mod	Removed gRPC module dependency and updated remaining indirect requirements.
apiserver/go.sum	Cleaned sums to reflect removed gRPC/protobuf-related modules.
apiserver/internal/grpc/common.pb.go	Removed generated Go protobuf code for common.proto.
apiserver/internal/grpc/label.pb.go	Removed generated Go protobuf code for label.proto.
apiserver/internal/grpc/task.pb.go	Removed generated Go protobuf code for task.proto.
apiserver/internal/grpc/task_service.pb.go	Removed generated Go protobuf code for task_service.proto.
apiserver/internal/grpc/user.pb.go	Removed generated Go protobuf code for user.proto.
apiserver/internal/grpc/label.go	Removed Go gRPC service implementation for labels.
apiserver/internal/grpc/task.go	Removed Go gRPC service implementation for tasks.
apiserver/internal/grpc/user.go	Removed Go gRPC service implementation for users.
.github/copilot-instructions.md	Updated contributor instructions to reflect HTTP-based approach and removed proto workflow.
.agents/architecture.md	Updated architecture doc to remove protobuf layer and describe REST + WebSocket transport.

[Copilot]

The import block ordering/grouping in this file doesn’t match the Go import grouping convention used elsewhere in the codebase (stdlib → internal dkhalife.com/tasks/... → external). Since this hunk touches the imports, consider running goimports/gofmt to regroup/sort them to keep consistency and avoid future churn (e.g., compare with apiserver/internal/apis/task.go import grouping).

[Copilot]

This overview now says the frontend communicates via HTTP only, but the codebase still includes a WebSocket transport/path (and this PR description mentions WebSocket). Consider updating this sentence to explicitly mention WebSocket (e.g., “HTTP + WebSocket”) to keep the high-level docs accurate/consistent with .agents/architecture.md.

Suggested change

	Task Wizard is a self-hosted, privacy-focused task management app: React frontend communicates via HTTP → Go API server handles business logic and persistence → SQLite/MySQL via GORM. A .NET MCP server exposes tools for AI assistants.
	Task Wizard is a self-hosted, privacy-focused task management app: React frontend communicates via HTTP + WebSocket → Go API server handles business logic and persistence → SQLite/MySQL via GORM. A .NET MCP server exposes tools for AI assistants.