feat(shared): migrate genie to modular @databricks/sdk-genie

[MarioCadenas]

Part of the migration off @databricks/sdk-experimental onto the modular @databricks/sdk-* SDK (see #562). Base: analytics-migration-sdk.

Changes

feat(shared): migrate genie to modular @databricks/sdk-genie

Route the facade's genie accessor through a lazily built modular
GenieClient (sdk-genie 0.54.0, compatible with sdk-core/auth/options
0.51.0) and port the genie connector to its camelCase model.

• Poll getConversationMessage ourselves instead of using the SDK waiter:
  the modular wait() has no onProgress, which the SSE status events need.
  Cadence, timeout and the "failed to reach COMPLETED state" errors match
  the legacy waiter.
• Convert the query statement response back to the snake_case wire shape
  with bigint counts as numbers, so the SSE contract and JSON.stringify
  keep working.
• Patch sdk-genie: its model types data_array as protobuf ListValue[], so
  the unmarshal rejected every real JSON_ARRAY query result.
• Match RESOURCE_DOES_NOT_EXIST on ApiError .code / .errorCode too.

The CLI's listSpaces/getSpace calls stay on the legacy client.

Draft: implemented by an agent; needs review and a deployed SP + OBO check before it's marked ready.

This pull request and its description were written by Isaac.

[github-actions]

📦 Bundle size report

Compared against bundle-size-baseline.json (main).

@databricks/appkit

npm tarball (packed): 1.2 MB (+15 KB) — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	1.2 MB (+14 KB)	453 KB (+5.5 KB)
Type declarations	459 KB (+3.2 KB)	167 KB (+1.3 KB)
Source maps	2.5 MB (+27 KB)	847 KB (+9.6 KB)
Other	11 KB	3.7 KB
Total	4.2 MB (+45 KB)	1.4 MB (+16 KB)

Per-entry composition (own code — deps external (as shipped))

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
.	103 KB (+1.3 KB)	2.5 KB	106 KB (+1.3 KB)	external	335 KB (+3.7 KB)
./beta	100 KB (+1.0 KB)	485 B (+1 B)	100 KB (+1.0 KB)	external	300 KB (+2.7 KB)
./testing	43 KB (+1.1 KB)	32 KB (+3 B)	75 KB (+1.1 KB)	external	218 KB (+3.2 KB)
./tsdown	520 B	0 B	520 B	external	813 B
./type-generator	24 KB (+1.1 KB)	0 B	24 KB (+1.1 KB)	external	69 KB (+3.0 KB)

Chunks:

Entry	Chunk	Load	Size (gz)
.	index.js	initial	99 KB
.	utils.js	initial	4.6 KB
.	remote-tunnel-manager.js	lazy	2.5 KB
./beta	beta.js	initial	81 KB
./beta	stream-manager.js	initial	5.9 KB
./beta	modular.js	initial	4.3 KB
./beta	service-context.js	initial	4.2 KB
./beta	databricks.js	initial	3.3 KB
./beta	client.js	initial	595 B
./beta	index.js	initial	20 B
./beta	supervisor-api.js	lazy	192 B
./beta	databricks.js	lazy	179 B
./beta	index.js	lazy	114 B
./testing	manifest.js	initial	30 KB
./testing	index.js	initial	10 KB
./testing	wide-event-emitter.js	initial	2.9 KB
./testing	index.js	lazy	28 KB
./testing	remote-tunnel-manager.js	lazy	2.5 KB
./testing	utils.js	lazy	1.8 KB
./tsdown	index.js	initial	520 B
./type-generator	index.js	initial	24 KB

@databricks/appkit-ui

npm tarball (packed): 397 KB (+88 B) — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	428 KB	146 KB
Type declarations	266 KB (+151 B)	98 KB (+99 B)
Source maps	852 KB	285 KB
CSS	16 KB	3.2 KB
Total	1.5 MB (+151 B)	533 KB (+99 B)

Per-entry composition (consumer bundle — deps bundled, peerDeps external)

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
./js	5.3 KB	49 KB	55 KB	208 KB	14 KB
./js/beta	2.1 KB	0 B	2.1 KB	0 B	5.0 KB
./react	433 KB	49 KB	481 KB	1.3 MB	177 KB
./react/beta	4.9 KB	0 B	4.9 KB	0 B	12 KB

Chunks:

Entry	Chunk	Load	Size (gz)
./js	index.js	initial	5.2 KB
./js	chunk	initial	120 B
./js	apache-arrow	lazy	49 KB
./js/beta	beta.js	initial	2.1 KB
./react	index.js	initial	431 KB
./react	tslib	initial	2.1 KB
./react	apache-arrow	lazy	49 KB
./react/beta	beta.js	initial	4.9 KB

[github-actions]

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Scaffolds a new app from this PR's SDK build. Run it in any folder (requires the GitHub CLI — gh auth login — and the Databricks CLI):

gh run download 37794004124 -R databricks/appkit -n appkit-template-0.87.0-pr.9af4eca-feat-modular-genie-646 -D appkit-pr-646 \
  && unzip -o "appkit-pr-646/appkit-template-0.87.0-pr.9af4eca-feat-modular-genie-646.zip" -d "appkit-pr-646" \
  && databricks apps init --template "appkit-pr-646"

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