Add Editing Quasar Programs section

[mikemaccana]

Capture the Quasar rules learned from porting asset-leasing. Quasar is the lower-level framework used for performance-sensitive ports of Anchor programs; most of the surface looks like Anchor but several conveniences are missing or different (no realloc, no close, no CpiContext, account state numeric fields are Pod-wrapped, log() takes static strings only, account structs need explicit lifetimes).

Use the same program ID across the Anchor and Quasar binaries so off-chain tooling that derives PDAs works against either build with no changes.

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Note

Low Risk
Documentation-only changes; no runtime, build, or security-sensitive code is modified.

Overview
Updates the skill docs to explicitly cover Quasar alongside Anchor, including refreshed README.md/frontmatter wording so the skill is invoked for both frameworks and their configs (e.g., Quasar.toml).

Adds a new "Editing Quasar Programs" section to SKILL.md documenting Quasar-specific constraints and gotchas (shared program ID with Anchor for PDA derivations, Pod-wrapped numeric fields, log() static-string limitation, explicit lifetimes, and lack of realloc/close constraints and CpiContext).

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