chore: sync main into development

[gjermundgaraba]

Summary

Sync the latest changes from main into development, including:

• README update (Update readme #1250)
• CODEOWNERS update (chore: add foundations team to CODEOWNERS #1253)
• Git LFS normalization for PNG files (chore: normalize PNG files with Git LFS #1261)

This keeps the long-lived development branch aligned with main.

Merge strategy

Use a regular merge commit to preserve branch ancestry and simplify future main → development synchronizations.

[greptile-apps]

Greptile Summary

This PR syncs three changes from main into the long-lived development branch: a CODEOWNERS file establishing @cosmos/foundations-team as global owners, a README restructuring that prominently surfaces IBC v2 specifications and replaces the PNG banner with a new SVG asset, and Git LFS normalization converting 12 large PNG files from full binary blobs to LFS pointer stubs.

• CODEOWNERS (** glob): added, covers all repository files, valid syntax.
• README.md: adds an "IBC v2 Specifications" section with tables for Core Transport and App standards; reorganizes existing IBC v1 content under a dedicated heading. All linked spec/IBC_V2/… paths were verified to exist in the repository.
• Git LFS normalization: 12 spec-diagram PNGs reduced from hundreds of KB / MB each to ~130-byte LFS pointers; two now-unused assets (interchain-standards.png, interchain-standards-image.jpg) are fully removed.

Confidence Score: 5/5

Safe to merge — all changes are documentation, asset, and configuration updates with no logic or protocol changes.

The PR touches only the README, CODEOWNERS, an SVG banner, and LFS pointer normalization for diagram PNGs. All new README links were verified to point to existing files. The SVG contains only static vector paths with no scripts or external fetches. No spec logic is altered.

No files require special attention.

Important Files Changed

Filename	Overview
.github/CODEOWNERS	New file assigning all repo files to @cosmos/foundations-team; valid CODEOWNERS syntax with no issues.
README.md	Restructured to add an IBC v2 specifications section at the top, converted existing sections from ### to #### under a new "IBC v1 Specifications" heading, replaced PNG banner with SVG. All linked paths verified present in the repo.
assets/cosmos-ibc-github.svg	New SVG banner added to replace the deleted PNG banner; contains only vector graphics paths and no scripts or external references.
spec/app/ics-028-cross-chain-validation/figures/ccv-init-overview.png	PNG converted from full binary (3 MB) to a Git LFS pointer (~132 bytes) as part of the LFS normalization; representative of all other PNG files in this PR.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[main branch] -->|"#1250 README update"| B[Sync commits]
    A -->|"#1253 CODEOWNERS update"| B
    A -->|"#1261 Git LFS PNG normalization"| B
    B -->|"Regular merge commit"| C[development branch]
    C --> D1[".github/CODEOWNERS\n** @cosmos/foundations-team"]
    C --> D2["README.md\nIBC v2 section added\nBanner: PNG → SVG"]
    C --> D3["12x PNG files\nFull binary → LFS pointer"]
    C --> D4["assets/\nNew SVG added\n2 unused assets removed"]

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[main branch] -->|"#1250 README update"| B[Sync commits]
    A -->|"#1253 CODEOWNERS update"| B
    A -->|"#1261 Git LFS PNG normalization"| B
    B -->|"Regular merge commit"| C[development branch]
    C --> D1[".github/CODEOWNERS\n** @cosmos/foundations-team"]
    C --> D2["README.md\nIBC v2 section added\nBanner: PNG → SVG"]
    C --> D3["12x PNG files\nFull binary → LFS pointer"]
    C --> D4["assets/\nNew SVG added\n2 unused assets removed"]

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_{Reviews (1): Last reviewed commit: "chore: normalize PNG files with Git LFS ..." | Re-trigger Greptile}

[gjermundgaraba]

Superseded by #1263, which resolves the asset relocation and README conflicts on an integration branch based on development.