feat(integrations): add 8 missing mainstream MCP server templates (#59)

* feat(integrations): add filesystem, fetch, memory, puppeteer, sequential-thinking, git, google-maps, time

* chore(integrations): fix taplo formatting for filesystem and puppeteer

integrations/sequential-thinking.toml

@@ -0,0 +1,22 @@
+id = "sequential-thinking"
+name = "Sequential Thinking"
+description = "Structured multi-step reasoning tool — breaks complex problems into revisable thought chains before answering"
+category = "ai"
+icon = "🔗"
+tags = ["reasoning", "thinking", "chain-of-thought", "planning", "logic"]
+
+[transport]
+type = "stdio"
+command = "npx"
+args = ["-y", "@modelcontextprotocol/server-sequential-thinking@latest"]
+
+[health_check]
+interval_secs = 60
+unhealthy_threshold = 3
+
+setup_instructions = """
+No API key required.
+
+Useful for complex reasoning tasks: multi-step math, logic puzzles, planning, debugging.
+The agent can revise earlier steps as it learns more during the thought chain.
+"""