feat: initial scaffold of awesome-coding-agents tracker

Go updater that fetches AI agent coding tool repo stats via GitHub GraphQL
(batched, one query), sorts by star count, appends a daily snapshot to
data/history.jsonl, and regenerates README.md from templates/readme.tmpl.
Daily workflow at .github/workflows/update.yml refreshes rankings and
commits changes. Seed list in data/agents.yml covers 19 tracked repos.

data/agents.yml

@@ -0,0 +1,62 @@
+# Curated list of AI agent coding tools.
+# Edit this file to add, remove, or recategorize entries.
+# The daily GitHub Actions run will refresh stars and regenerate README.md.
+
+agents:
+  - owner: Aider-AI
+    repo: aider
+    category: cli
+  - owner: cline
+    repo: cline
+    category: extension
+  - owner: continuedev
+    repo: continue
+    category: extension
+  - owner: sst
+    repo: opencode
+    category: cli
+  - owner: charmbracelet
+    repo: crush
+    category: cli
+  - owner: google-gemini
+    repo: gemini-cli
+    category: cli
+  - owner: openai
+    repo: codex
+    category: cli
+  - owner: block
+    repo: goose
+    category: cli
+  - owner: plandex-ai
+    repo: plandex
+    category: cli
+  - owner: gpt-engineer-org
+    repo: gpt-engineer
+    category: cli
+  - owner: SWE-agent
+    repo: SWE-agent
+    category: research
+  - owner: RooCodeInc
+    repo: Roo-Code
+    category: extension
+  - owner: TabbyML
+    repo: tabby
+    category: ide
+  - owner: zed-industries
+    repo: zed
+    category: ide
+  - owner: voideditor
+    repo: void
+    category: ide
+  - owner: anthropics
+    repo: claude-code
+    category: cli
+  - owner: yetone
+    repo: avante.nvim
+    category: extension
+  - owner: stackblitz
+    repo: bolt.new
+    category: web
+  - owner: kortix-ai
+    repo: suna
+    category: web

data/history.jsonl

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+{"date":"2026-05-13","stars":{"Aider-AI/aider":44740,"AntonOsika/gpt-engineer":55219,"RooCodeInc/Roo-Code":24034,"SWE-agent/SWE-agent":19205,"TabbyML/tabby":33507,"aaif-goose/goose":45115,"anomalyco/opencode":159409,"anthropics/claude-code":123059,"charmbracelet/crush":24226,"cline/cline":61705,"continuedev/continue":33158,"google-gemini/gemini-cli":103832,"kortix-ai/suna":19752,"openai/codex":82234,"plandex-ai/plandex":15358,"stackblitz/bolt.new":16370,"voideditor/void":28747,"yetone/avante.nvim":17887,"zed-industries/zed":82628}}