Replace connect-specific entry points with one global entry point

[mars-lan]

🤔 Why?

To simplify the user experience

Before:

python -m metaphor.bigquery bigquery.yml

After:

metaphor bigquery bigquery.yml

🤓 What?

• Replace connector-specific entry points with a global "metaphor" CLI entry point
• Update all relevant README files
• Remove the deprecated and unused Google and Slack directory connectors

🧪 Tested?

Built a test Docker image and manually verified all connectors end-to-end.

[shortcut-integration]

This pull request has been linked to Shortcut Story #10762: Replace crawler-specific entry points with a global entry point.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
metaphor
main.py	13	13	0%	1–22
metaphor/airflow_plugin/lineage
backend.py	91	20	78%	12–13, 38–50, 80–81, 84–85, 88, 99–100, 126, 168, 173
metaphor/bigquery
init.py	4	1	75%	6
extractor.py	96	19	80%	6–8, 36, 39, 78–82, 104–105, 125–126, 157, 163–169, 187
logEvent.py	64	6	91%	45–46, 90–91, 98, 113
utils.py	58	14	76%	14–16, 28–29, 36–37, 46–53, 102, 123, 127
metaphor/bigquery/lineage
init.py	4	1	75%	6
extractor.py	120	23	81%	7–9, 37, 40, 75–76, 89–90, 96–97, 102, 113, 115, 119, 153–154, 157, 164, 167–170, 178–179
metaphor/bigquery/profile
init.py	4	1	75%	6
extractor.py	154	69	55%	9–11, 38, 41, 45, 48, 53–61, 68–90, 98–116, 124–164
metaphor/bigquery/query
init.py	4	1	75%	6
extractor.py	67	9	87%	29, 32, 64, 76, 79–80, 90–91, 100
metaphor/bigquery/usage
init.py	4	1	75%	6
extractor.py	94	9	90%	31, 35–36, 63, 66, 97, 117–118, 121
metaphor/common
api_sink.py	36	20	44%	26–29, 33–60
cli.py	6	3	50%	7–9
event_util.py	51	6	88%	55, 57, 61, 68–70
extractor.py	65	17	74%	44–51, 65–69, 94, 98–99, 102–103
file_sink.py	56	13	77%	50, 78–90, 94–95
filter.py	71	1	99%	32
git.py	28	5	82%	42–48
query_history.py	27	1	96%	31
sink.py	20	3	85%	21, 28–29
storage.py	67	18	73%	69, 91–92, 103–112, 115–131, 138–140, 151
metaphor/dbt
init.py	4	1	75%	6
catalog_parser_v1.py	75	30	60%	47–49, 63, 82, 101, 107–109, 113–146
extractor.py	52	3	94%	31, 34, 84
manifest_parser_v3.py	116	11	91%	77–79, 152, 160, 183–184, 212–213, 262, 288
manifest_parser_v5.py	129	13	90%	85–87, 162, 170, 196–197, 223–224, 258, 318, 338, 344
util.py	98	5	95%	52, 177–180
metaphor/dbt/cloud
init.py	4	1	75%	6
extractor.py	68	28	59%	28–29, 32–43, 48–69, 78–83, 89–94, 103, 106
metaphor/dbt/generated
dbt_manifest_v1.py	847	847	0%	7–1307
dbt_manifest_v2.py	848	848	0%	7–1324
metaphor/looker
init.py	4	1	75%	6
extractor.py	89	64	28%	11–13, 40, 43, 47, 71–76, 79–102, 107–143, 150–202
lookml_parser.py	243	16	93%	15–17, 86, 93–97, 112–113, 139, 180–181, 207–208, 272, 557
metaphor/manual/governance
init.py	4	1	75%	6
extractor.py	28	2	93%	24, 27
metaphor/manual/lineage
init.py	4	1	75%	6
extractor.py	31	2	94%	24, 27
metaphor/metabase
init.py	4	1	75%	6
extractor.py	163	89	45%	47, 50, 70, 99–150, 153–162, 165–170, 178, 181, 188–189, 195–237, 253–256, 263, 268–296, 306, 312, 314, 318, 331–333
metaphor/postgresql
init.py	4	1	75%	6
extractor.py	177	99	44%	9–11, 47, 50, 61–81, 87–88, 98–105, 113–157, 162–210, 213–259, 269–293, 297–302, 313–329, 374
metaphor/postgresql/profile
init.py	4	1	75%	6
extractor.py	121	46	62%	7–9, 32, 35, 39, 44–47, 53–71, 79–95, 98–113, 205–206, 225–226, 233–235
metaphor/postgresql/usage
init.py	4	4	0%	1–6
config.py	5	5	0%	1–8
extractor.py	46	46	0%	1–78
metaphor/power_bi
init.py	4	1	75%	6
extractor.py	306	113	63%	47–49, 169, 172–185, 189–190, 196–197, 203–204, 210–211, 217–218, 224–225, 230–292, 306–315, 322, 325, 342, 361–362, 403–404, 429–430, 441–442, 479, 492–493, 537–582
power_query_parser.py	113	9	92%	63, 127–132, 176–179
metaphor/redshift
init.py	4	1	75%	6
access_event.py	39	6	85%	53, 74–85
extractor.py	43	27	37%	18, 21, 25, 28–29, 32–52, 55–74
metaphor/redshift/lineage
init.py	4	1	75%	6
extractor.py	59	3	95%	28, 31, 35
metaphor/redshift/profile
init.py	4	4	0%	1–6
config.py	5	5	0%	1–8
extractor.py	23	23	0%	1–36
metaphor/redshift/query
init.py	4	4	0%	1–6
config.py	9	9	0%	1–18
extractor.py	42	42	0%	1–88
metaphor/redshift/usage
init.py	4	1	75%	6
extractor.py	47	5	89%	22, 25, 29, 67, 70
metaphor/snowflake
auth.py	38	10	74%	14–16, 61–80
extractor.py	182	143	21%	18–20, 45, 48, 52, 55–57, 60–98, 102–105, 117–143, 146–175, 189–230, 235–263, 266–289, 292–313, 317, 327–355
utils.py	61	32	48%	42–56, 71–92, 103–125
metaphor/snowflake/lineage
init.py	4	1	75%	6
extractor.py	86	34	60%	38, 41, 45, 57–130, 133–138, 157, 167, 173, 177–178, 183–184
metaphor/snowflake/profile
init.py	4	1	75%	6
extractor.py	157	63	60%	8–10, 49, 52, 56, 59–63, 68–97, 106–133, 148–189
metaphor/snowflake/query
init.py	4	4	0%	1–6
config.py	11	11	0%	1–23
extractor.py	75	75	0%	1–193
metaphor/snowflake/usage
init.py	4	1	75%	6
extractor.py	84	35	58%	38, 41, 45, 58–128, 131–133, 146, 151–152, 156–157, 173, 184–185
metaphor/tableau
init.py	4	1	75%	6
extractor.py	148	61	59%	16–18, 59, 62, 75, 78–144, 191–193, 218–221, 265, 271, 277, 281–285, 291, 313–327, 350
metaphor/thought_spot
init.py	4	4	0%	1–6
config.py	14	14	0%	1–23
extractor.py	118	118	0%	1–324
models.py	119	119	0%	4–192
utils.py	95	95	0%	1–257
TOTAL	9690	3516	64%

Tests	Skipped	Failures	Errors	Time
124	0 💤	0 ❌	0 🔥	7.021s ⏱️

[elic-eon]

LGTM