feat: add Go API library

docs/compose/plans/2026-07-18-initialize-git-repository.md

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+# Initialize Git Repository Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use compose:subagent (recommended) or compose:execute to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Initialize the Go library as a Git repository and publish its first commit to git.misaka.ren.
+
+**Architecture:** Track the root Go module as the repository. Exclude local MiMoCode state, authentication data, generated MIoT cache data, and the nested Python reference repository.
+
+**Tech Stack:** Git, Go 1.22+
+
+## Global Constraints
+
+- Use `https://git.misaka.ren/m1saka/mijia-go-api.git` as `origin`.
+- Keep `mijia-api/` untracked.
+- Use `feat: add Go API library` as the initial commit message.
+
+---
+
+### Task 1: Initialize And Publish Repository
+
+**Files:**
+- Create: `.gitignore`
+
+- [ ] **Step 1: Verify the Go library**
+
+Run: `go test ./...`
+Expected: all packages pass.
+
+- [ ] **Step 2: Initialize the repository**
+
+Run: `git init -b main`
+Expected: an empty Git repository on branch `main`.
+
+- [ ] **Step 3: Configure the remote**
+
+Run: `git remote add origin https://git.misaka.ren/m1saka/mijia-go-api.git`
+Expected: `origin` points to the target repository.
+
+- [ ] **Step 4: Create the initial commit**
+
+Run: `git add . && git commit -m "feat: add Go API library"`
+Expected: one root commit containing the Go library and documentation, excluding ignored local data.
+
+- [ ] **Step 5: Publish and verify**
+
+Run: `git push -u origin main`
+Expected: `main` tracks `origin/main` and the worktree is clean.