fix: suppress avatar 404s and chart dimension warnings

[TheDarkSkyXD]

Summary

• Remove eager avatarUrl from topology graph agent nodes — agents without custom avatars were triggering 404 console errors on every render. Gradient fallback avatars display correctly without the URL.
• Add debounce={1} to ResponsiveContainer in AgentDetail charts (MemoryGrowthChart, ProcessActivityChart, MemoryDonut) to prevent the "width(-1) and height(-1)" warnings on initial mount.

Test plan

• Verify no more GET /api/agents/avatar?agent_id=... 404 errors in console on the overview/topology page
• Verify agent gradient avatars still render correctly in the topology graph
• Verify agents with custom avatars still show them on the config page
• Verify no more "width(-1) and height(-1)" chart warnings in console on agent detail pages
• Verify charts still render and resize correctly

🤖 Generated with Claude Code

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 36a1f7eb-5c6f-4a54-b62b-ea4e64a066a4

📥 Commits

Reviewing files that changed from the base of the PR and between b7d5dd2 and 4c0d1b5.

📒 Files selected for processing (2)

• interface/src/components/TopologyGraph.tsx
• interface/src/routes/AgentDetail.tsx

💤 Files with no reviewable changes (1)

• interface/src/components/TopologyGraph.tsx

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Walkthrough

Two files modified: removed avatar URL resolution from graph agent nodes in TopologyGraph, and added debounce configuration to chart container components in AgentDetail for resize handling optimization.

Changes

Cohort / File(s)	Summary
TopologyGraph Avatar Field Removal interface/src/components/TopologyGraph.tsx	Removed avatarUrl: api.agentAvatarUrl(agentId) field from agent node data payload in buildGraph function, relying on gradient-based avatar generation instead.
Chart Debounce Configuration interface/src/routes/AgentDetail.tsx	Added debounce={1} prop to ResponsiveContainer components wrapping three Recharts charts: MemoryGrowthChart, ProcessActivityChart, and MemoryDonut.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes both main changes: removing avatarUrl to fix 404 errors and adding debounce to suppress chart warnings.
Description check	✅ Passed	The description is directly related to the changeset, clearly explaining the motivation and impact of both the avatar URL removal and debounce addition.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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