WIP: openclaw localized stream display projector

[WineChord]

Summary

• Add openclaw/streamdisplay, a reusable localized projector for stream display snapshots.
• Split the core projector from the gwproto adapter so render state is not tied to transport structs.
• Surface tool-call names and compact redacted argument summaries in run.progress events, including multi-tool-call responses.
• Render tool argument details as localized Args / 参数 child lines while preserving tool lifecycle status.

Design Notes

• Projector exposes explicit methods such as ApplyTool, ApplyPublicDelta, ApplyAnswerCompleted, and terminal state methods.
• gwproto.go is the protocol adapter; it maps stream stages/tool status into display item kinds and statuses.
• Reasoning is hidden by default and only appears when ShowReasoning is enabled.
• Tool arguments are summarized generically from JSON, with sensitive keys such as tokens, passwords, cookies, API keys, and credentials redacted before they enter stream events.
• Partial or malformed tool argument fragments are conservatively redacted when they mention a sensitive key, so streaming deltas do not expose half-written secrets.
• Snapshots copy item and option state so callers cannot mutate projector render output by changing a previous snapshot.

Validation

• cd openclaw && go test ./streamdisplay ./gwclient ./internal/gateway
• cd openclaw && go test ./...

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[codecov]

Codecov Report

❌ Patch coverage is 86.10709% with 96 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.84732%. Comparing base (b95acb8) to head (2c22d1c).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
openclaw/internal/gateway/tool_arguments.go	70.08547%	31 Missing and 4 partials ⚠️
openclaw/streamdisplay/display.go	91.09415%	18 Missing and 17 partials ⚠️
openclaw/streamdisplay/gwproto.go	86.36364%	10 Missing and 5 partials ⚠️
openclaw/internal/gateway/stream.go	84.50704%	6 Missing and 5 partials ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main       #1746         +/-   ##
===================================================
- Coverage   89.87151%   89.84732%   -0.02420%     
===================================================
  Files            912         918          +6     
  Lines         147169      147961        +792     
===================================================
+ Hits          132263      132939        +676     
- Misses          9381        9458         +77     
- Partials        5525        5564         +39     

Flag	Coverage Δ
unittests	89.84732% <86.10709%> (-0.02420%)	⬇️

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