flag(buffers): new flag format

[josedonizetti]

Replace deprecated buffer flags with unified --buffers flag

Flag Migration
Old flags → New flags:
--perf-buffer-size → --buffers kernel-events=
--blob-perf-buffer-size → --buffers kernel-blob=
--pipeline-channel-size → --buffers pipeline=
(new) --buffers control-plane-events=

Config Format
YAML/JSON:

Oldperf-buffer-size: 1024blob-perf-buffer-size: 1024# Newbuffers: kernel-events: 1024 kernel-blob: 1024 control-plane-events: 1024 pipeline: 20000

Helm values:
config.perfBufferSize → config.kernelEvents
config.blobPerfBufferSize → config.kernelBlob
(new) config.controlPlaneEvents
(new) config.pipeline

All buffer values default to empty (no defaults).

⚠️ Breaking change: Old flags are removed.

[codecov]

Codecov Report

❌ Patch coverage is 54.80769% with 47 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@584c3eb). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
pkg/cmd/cobra/cobra.go	0.00%	12 Missing ⚠️
cmd/tracee/cmd/root.go	0.00%	10 Missing ⚠️
pkg/cmd/flags/buffers.go	80.43%	9 Missing ⚠️
pkg/cmd/urfave/urfave.go	0.00%	9 Missing ⚠️
cmd/tracee/cmd/man.go	40.00%	3 Missing ⚠️
pkg/cmd/flags/help.go	0.00%	3 Missing ⚠️
pkg/ebpf/controlplane/controller.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5007   +/-   ##
=======================================
  Coverage        ?   29.85%           
=======================================
  Files           ?      235           
  Lines           ?    26249           
  Branches        ?        0           
=======================================
  Hits            ?     7836           
  Misses          ?    17874           
  Partials        ?      539           

Flag	Coverage Δ
unit	29.85% <54.80%> (?)

Files with missing lines	Coverage Δ
cmd/tracee-ebpf/main.go	0.00% <ø> (ø)
pkg/cmd/cobra/config.go	90.11% <100.00%> (ø)
pkg/config/config.go	0.00% <ø> (ø)
pkg/ebpf/tracee.go	0.00% <ø> (ø)
pkg/ebpf/controlplane/controller.go	16.76% <0.00%> (ø)
cmd/tracee/cmd/man.go	40.62% <40.00%> (ø)
pkg/cmd/flags/help.go	0.00% <0.00%> (ø)
pkg/cmd/flags/buffers.go	80.43% <80.43%> (ø)
pkg/cmd/urfave/urfave.go	0.00% <0.00%> (ø)
cmd/tracee/cmd/root.go	0.00% <0.00%> (ø)
... and 1 more

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