feature: add ZdsChip with selectable and filter variants

[sohankshirsagar]

Summary

Adds a chip component to the library. ZdsChip extends Material's Chip (defStyleAttr chipStyle) and exposes a chip_style enum attr with two variants; both are checkable, and the variant only controls whether the checked icon is shown:

enum class Style { SELECTABLE, FILTER }
isCheckable = true
isCheckedIconVisible = style == Style.FILTER

Colors follow the existing selector pattern (chip_background_selector, chip_stroke_selector, chip_text_selector) so unselected/selected/disabled states resolve from the ZDS palette and pick up the night-mode overrides automatically. Styles Zds.Chip.Selectable / Zds.Chip.Filter inherit from Zds.Chip.

Demo app gets a "Chips" screen (nav graph + drawer entry) showing a single-selection selectable group and a multi-selection filter group, each with a disabled chip.

Note: assembleDebug fails on main for unrelated reasons — the two ic_currency_north_america_$_*.xml drawables have $ in their filenames, which AAPT rejects. I verified the build and :app:lintDebug pass with those two pre-existing files temporarily moved aside; they are untouched in this PR.

Devin-Org: engineering

Link to Devin session: https://app.devin.ai/sessions/0d9fe7f127704f84abe81ad81a55f123
Open in Devin Desktop: https://app.devin.ai/desktop/session/0d9fe7f127704f84abe81ad81a55f123?variant=devin
Requested by: @sohankshirsagar

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[devin-ai-integration]

Completed end-to-end UI testing of ZdsChip in the local demo on Android 14/API 34.

Verified chip behavior and appearance

• Drawer navigation opens Chips with the expected initial states.
• Selectable chips enforce one required selection, use blue/tinted selected styling, and never show check icons.
• Filters support simultaneous selection and independent deselection, with check icons only when checked.
• Disabled Archived/Tablets remain grey and ignore taps.
• Light/dark switching retains selections; interactions work in both themes.

Light theme — Active and both filters selected	Dark theme — All and both filters selected

Environment notes and scope

Built with the documented temporary workaround for the two pre-existing $-named drawables; both were restored. An early install required waiting for emulator boot completion. One initial automated theme tap required retry; subsequent switching worked. No reproducible feature defect found.

Coverage is the demo's XML-configured variants on one emulator, not other devices or programmatic construction.

Devin testing session