Fix daemon log format config conversion

[MrAlias]

Motivation

• The v1-to-v2 conversion was populating daemon.logging.format from LogConfig instead of LogFormat, causing converted configs to lose the intended log output format.
• The change preserves the semantic split where LogFormat controls text vs JSON output and LogConfig controls startup configuration logging.

Description

• Export conversion now writes daemon.logging.format from cfg.LogFormat and maps cfg.LogConfig to the shorter daemon.logging.config_format field (internal/config/convert/export.go).
• Import conversion now maps daemon.logging.format and daemon.logging.config_format back into the runtime logging settings for both full and partial daemon conversions (internal/config/convert/import.go).
• The v2 daemon logging schema accepts text and json log output formats, plus yaml and json startup configuration logging formats (internal/config/schema/daemon.go).
• Tests, docs, schema artifacts, the parity checker, and the v2 default example were updated to reflect the proper logging mapping and terminology.

Testing

• go test ./internal/config/convert ./internal/config/schema
• go test ./pkg/ebpf/common
• python3 devdocs/config/version-2.0/validate_example.py --config devdocs/config/version-2.0/examples/default-configuration.yaml
• make lint-markdown

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 69.34%. Comparing base (b9fe20e) to head (24daf72).

Files with missing lines	Patch %	Lines
internal/config/convert/export.go	88.88%	2 Missing ⚠️
internal/config/convert/import.go	96.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2524      +/-   ##
==========================================
+ Coverage   69.07%   69.34%   +0.27%     
==========================================
  Files         348      348              
  Lines       47314    47351      +37     
==========================================
+ Hits        32683    32837     +154     
+ Misses      12582    12455     -127     
- Partials     2049     2059      +10     

Flag	Coverage Δ
integration-test	50.46% <ø> (-0.40%)	⬇️
integration-test-arm	28.17% <ø> (+1.87%)	⬆️
integration-test-vm-5.15-lts	?
integration-test-vm-6.18-lts	?
k8s-integration-test	35.57% <ø> (-0.61%)	⬇️
oats-test	35.49% <ø> (-0.09%)	⬇️
unittests	63.59% <93.75%> (+0.04%)	⬆️

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