docs(26.05): fix broken source and release-note links

[kheiss-uwzoo]

Summary

• Repoint extraction source-code links from the internal main branch to the 26.05 release branch. These paths (src/nemo_retriever/vdb/*, src/nemo_retriever/service/*, src/nemo_retriever/evaluation/README.md) were removed/restructured on main but exist on 26.05, so the published 26.5.0 docs were 404ing.
• Archive the dead Pinecone sample-repo links in vdbs.md (the pinecone-io/nvidia-pinecone-rag repository no longer exists).
• Archive previous-version release-note links that now 404; keep 26.03 (26.3.0), which still resolves.

Files

• docs/docs/extraction/vdbs.md
• docs/docs/extraction/custom-metadata.md
• docs/docs/extraction/workflow-document-ingestion.md
• docs/docs/extraction/releasenotes.md

Verification

• All repointed 26.05 GitHub URLs return HTTP 200.
• No blob/main / tree/main links remain for the removed source paths in the edited pages.
• Previous-version release-note URLs confirmed: 26.3.0 = 200; 26.1.2 and older = 404 (archived).

Scope

Docs-only changes on the 26.05 content. No runtime code, tests, or CI touched.

[greptile-apps]

Greptile Summary

This docs-only PR fixes broken links in four Markdown pages under docs/docs/extraction/ on the 26.05 release branch. Source-code links that previously pointed to blob/main or tree/main (for paths removed on main but present on 26.05) are repointed to the 26.05 branch, and dead external links are archived with explanatory text.

• Source-code links in vdbs.md, custom-metadata.md, and workflow-document-ingestion.md updated from blob/main/tree/main to blob/26.05/tree/26.05 for nemo_retriever/src/… paths.
• Pinecone sample-repo link in vdbs.md archived (repository no longer exists); replaced with a plain-text note.
• Previous-version release-note links in releasenotes.md pruned to only 26.03 (26.3.0), which still resolves; older URLs replaced with an archive notice.

Confidence Score: 5/5

Documentation-only change with no runtime code touched; all repointed links are to known-good paths on the 26.05 branch.

Every changed line is a Markdown link update or a dead-link archive notice. The repointed GitHub URLs have been verified to return HTTP 200, the removed release-note URLs were confirmed 404, and the remaining examples/ links on main exist there. No code, tests, or CI are affected.

No files require special attention.

Important Files Changed

Filename	Overview
docs/docs/extraction/vdbs.md	Multiple tree/main source-code links updated to tree/26.05; Pinecone dead link replaced with archive notice. One examples/ notebook link intentionally left on main (exists on main). Clean.
docs/docs/extraction/custom-metadata.md	Four blob/main/tree/main source links updated to 26.05; one examples/ notebook link intentionally left on main. Clean.
docs/docs/extraction/releasenotes.md	Removed nine 404-ing previous-version release-note links; replaced with an inline archive notice. Keeps 26.3.0 link which is verified as live.
docs/docs/extraction/workflow-document-ingestion.md	Single blob/main evaluation README link updated to blob/26.05. Clean one-line fix.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[PR #2318: Fix broken doc links] --> B{Link Category}
    B --> C[Source-code links]
    B --> D[Pinecone sample-repo link]
    B --> E[Previous-version release-note links]
    B --> F[Examples notebook links]
    C --> C1[Repointed to 26.05 branch - HTTP 200 verified]
    D --> D1[Archived - repo no longer exists]
    E --> E1[26.03 kept - HTTP 200 verified]
    E --> E2[26.1.2 and older removed - HTTP 404 confirmed]
    F --> F1[Left on main - intentionally unchanged]

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flowchart TD
    A[PR #2318: Fix broken doc links] --> B{Link Category}
    B --> C[Source-code links]
    B --> D[Pinecone sample-repo link]
    B --> E[Previous-version release-note links]
    B --> F[Examples notebook links]
    C --> C1[Repointed to 26.05 branch - HTTP 200 verified]
    D --> D1[Archived - repo no longer exists]
    E --> E1[26.03 kept - HTTP 200 verified]
    E --> E2[26.1.2 and older removed - HTTP 404 confirmed]
    F --> F1[Left on main - intentionally unchanged]

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_{Reviews (2): Last reviewed commit: "docs(26.05): pin retriever service API l..." | Re-trigger Greptile}