RDKEMW-21738: Restore crashupload success marker logline for upload success path [8.5]

[gomathishankar37]

No description provided.

[Copilot]

Pull request overview

Updates crashupload’s upload-success logging and expands/organizes L2 functional test documentation and rate-limit coverage, including clarifying that the deny-window is a global cooldown affecting both minidumps and coredumps.

Changes:

• Adjust upload success-path logging in the C uploader (upload_file()).
• Extend unit test coverage for unified rate limiting (add coredump + active deny-window case).
• Add/refresh L2 functional test artifacts: comprehensive shell-script TC catalog, applicability matrix, TODO tracker, feature spec, and test-suite README updates.

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
c_sourcecode/src/upload/upload.c	Changes upload success log line in the S3 PUT success path.
unittest/ratelimit_gtest.cpp	Updates deny-window timestamp creation type; adds coredump deny-window block test and clarifies comments.
test/uploadDumps_TestCases.md	Adds large functional TC document for uploadDumps.sh behavior.
test/L2_TODO.md	Adds L2 TODO tracker / summary for applicable TCs.
test/L2_TESTS.md	Adds L2 applicability + coverage mapping matrix for the C implementation.
test/functional-tests/tests/test_ratelimit_allow.py	Adds pytest L2 tests for rate-limit allow paths (TC-048/050/052–054/053).
test/functional-tests/tests/README.md	Reworks README to index pytest L2 suite and map files to TC coverage.
test/functional-tests/features/ratelimit.feature	Adds Gherkin feature spec for rate-limit scenarios.
README.md	Updates coverage figures/targets and L2 module status table.
openspec/subsystems/subsystem-analysis.md	Adds subsystem responsibility overview (OpenSpec).
openspec/runtime/execution-model.md	Adds runtime execution model documentation (OpenSpec).
openspec/integrations/client-integration-model.md	Adds integration/CLI model documentation (OpenSpec).
openspec/config.yaml	Adds OpenSpec context/rules configuration.

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