Add relevant 26.02 docs to r1.1.0

[sarahyurick]

• api-design.md (Video tutorial improve #1367)
• docs/about/concepts/video/abstractions.md (Video tutorial improve #1367)
• docs/about/release-notes/index.md (Ray Pool Executor #1415, Llane/sdg ray docs #1347, docs: vdr feedback #1477)
• docs/about/release-notes/migration-guide.md (Fix broken NeMo link #1463)
• docs/admin/installation.md (docs: vdr feedback #1477)
• docs/broken_links_false_positives.json (docs: vdr feedback #1477)
• docs/conf.py (Llane/sdg ray docs #1347)
• docs/curate-audio/tutorials/beginner.md (Video tutorial improve #1367)
• docs/curate-text/index.md (Llane/sdg ray docs #1347)
• docs/curate-text/process-data/deduplication/fuzzy.md (docs: vdr feedback #1477)
• docs/curate-text/process-data/deduplication/index.md (Video tutorial improve #1367)
• docs/curate-text/process-data/deduplication/semdedup.md (docs: vdr feedback #1477)
• docs/curate-text/process-data/quality-assessment/distributed-classifier.md (docs: vdr feedback #1477)
• docs/curate-text/process-data/quality-assessment/heuristic.md (heuristic page updates #1422)
• docs/curate-text/synthetic/nemotron-cc/index.md (Llane/sdg ray docs #1347)
• docs/curate-text/synthetic/nemotron-cc/tasks.md (Llane/sdg ray docs #1347)
• docs/curate-text/synthetic/index.md (Llane/sdg ray docs #1347)
• docs/curate-text/synthetic/llm-client.md (Llane/sdg ray docs #1347)
• docs/curate-text/synthetic/multilingual-qa.md (Llane/sdg ray docs #1347)
• docs/curate-video/index.md (Video tutorial improve #1367)
• docs/curate-video/load-data/index.md (Video tutorial improve #1367)
• docs/curate-video/process-data/captions-preview.md (docs: vdr feedback #1477)
• docs/curate-video/process-data/clipping.md (docs: vdr feedback #1477)
• docs/curate-video/process-data/dedup.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/curate-video/process-data/embeddings.md (docs: vdr feedback #1477)
• docs/curate-video/process-data/filtering.md (docs: vdr feedback #1477)
• docs/curate-video/process-data/frame-extraction.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/curate-video/process-data/index.md (docs: vdr feedback #1477)
• docs/curate-video/save-export.md (docs: vdr feedback #1477)
• docs/curate-video/tutorials/beginner.md (docs: vdr feedback #1477)
• docs/curate-video/tutorials/pipeline-customization/add-cust-env.md (Video tutorial improve #1367)
• docs/curate-video/tutorials/pipeline-customization/add-cust-model.md (Video tutorial improve #1367)
• docs/curate-video/tutorials/pipeline-customization/add-cust-stage.md (Video tutorial improve #1367)
• docs/curate-video/tutorials/split-dedup.md (docs: vdr feedback #1477)
• docs/get-started/audio.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/get-started/image.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/get-started/text.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/get-started/video.md (Video tutorial improve #1367, docs: vdr feedback #1477)
• docs/index.md (Llane/sdg ray docs #1347, docs: vdr feedback #1477)
• docs/project.json (docs: vdr feedback #1477)
• docs/reference/infrastructure/container-environments.md (docs: vdr feedback #1477)
• docs/reference/infrastructure/execution-backends.md (Ray Pool Executor #1415)
• docs/versions1.json (Llane/sdg ray docs #1347)
• tutorials/synthetic/README.md (Llane/sdg ray docs #1347)

Notes:

1. We do not include [benchmark] Add Video Benchmarks #1430 in r1.1.0

• r1.1.0 uses output-clip-path
• main uses output-path

2. We do not include Benchmarking script for image pipeline #1441 in r1.1.0

• r1.1.0 uses batch_size
• main uses dali_batch_size

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[greptile-apps]

Greptile Overview

Greptile Summary

Backports 26.02 release documentation from main to r1.1.0 branch. Updates version identifiers (25.09 → 26.02) across configuration files and adds comprehensive new documentation for synthetic data generation (Nemotron-CC pipelines, LLM client configuration, multilingual Q&A). Enhances existing documentation with improved examples, clarifications, and structural reorganization.

Major additions:

• New synthetic data generation guides (docs/curate-text/synthetic/*) covering LLM clients, multilingual Q&A, and advanced Nemotron-CC pipelines
• Enhanced video deduplication documentation with SemanticDeduplicationWorkflow examples
• Expanded installation guide with FFmpeg setup, CUDA 12 requirements, and container recommendations
• Updated release notes restructured for 26.02 release

Key improvements:

• Reorganized table of contents (Setup & Deployment moved before content sections)
• Added broken link false positive for HuggingFace token URL
• Expanded heuristic filter and distributed classifier documentation
• Improved tutorial README with command-line references and usage examples

The PR description explicitly notes intentional version-specific exclusions (#1430 uses output-clip-path in r1.1.0 vs output-path in main; #1441 uses batch_size vs dali_batch_size), ensuring proper compatibility with the r1.1.0 codebase.

Confidence Score: 5/5

• This PR is safe to merge with no risk - it contains only documentation updates with no code changes
• Documentation-only PR with 44 markdown/config files updated. Changes are well-scoped backports from main to r1.1.0 branch with clear version management (25.09 → 26.02). The PR author has documented intentional exclusions to maintain compatibility with r1.1.0 codebase. No code logic changes, no security concerns, and all updates follow established documentation patterns.
• No files require special attention

Important Files Changed

Filename	Overview
docs/about/release-notes/index.md	Updates release notes from 25.09 to 26.02, restructuring content and adding new feature documentation
docs/conf.py	Updates release version from 25.09 to 26.02 and container version string
docs/versions1.json	Adds 26.02 version as preferred release in version dropdown configuration
docs/curate-text/synthetic/index.md	New comprehensive synthetic data generation guide with overview and getting started sections
docs/curate-text/synthetic/llm-client.md	New documentation for LLM client configuration, covering AsyncOpenAIClient setup and performance tuning
docs/curate-text/synthetic/nemotron-cc/index.md	New advanced documentation for Nemotron-CC pipelines with architecture diagrams and composable patterns
docs/curate-text/synthetic/nemotron-cc/tasks.md	New comprehensive task reference for Nemotron-CC with examples for each task type
docs/admin/installation.md	Updates installation guide with CUDA 12 requirements, FFmpeg setup, and container recommendations
docs/curate-video/process-data/dedup.md	Major update adding SemanticDeduplicationWorkflow with improved examples and documentation structure
tutorials/synthetic/README.md	Expands synthetic tutorial README with Nemotron-CC examples, command-line reference, and usage guides
docs/index.md	Reorganizes table of contents, moving Setup & Deployment before content sections and adding Synthetic Data
docs/curate-text/process-data/quality-assessment/heuristic.md	Major expansion of heuristic filter documentation with examples and configuration details

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