Implement OWM OneCall Historical API (#36)

chore(deps): update actions/upload-artifact action to v5

feat: add unified binary with automated release infrastructure

chore(deps): bump golang.org/x/time from 0.12.0 to 0.14.0

chore(deps): bump github.com/modelcontextprotocol/go-sdk

test: add unit tests for MCP server

fix(deps): update module github.com/spf13/cobra to v1.10.1

chore(deps): update actions/setup-go action to v6

fix(deps): update module github.com/stretchr/testify to v1.11.1

fix(deps): update module github.com/stretchr/testify to v1.11.0

docs(readme): add CLI

feat(cli): single cmd cli

chore(mcp): bump mcp dep and update breaking changes

fix(deps): update module github.com/modelcontextprotocol/go-sdk to v0.3.0

test(onecall&geo): test new client